diff --git a/dataforge-vis-common/src/commonMain/kotlin/hep/dataforge/vis/DisplayObject.kt b/dataforge-vis-common/src/commonMain/kotlin/hep/dataforge/vis/DisplayObject.kt
index 1f40a835..e6e7b4ea 100644
--- a/dataforge-vis-common/src/commonMain/kotlin/hep/dataforge/vis/DisplayObject.kt
+++ b/dataforge-vis-common/src/commonMain/kotlin/hep/dataforge/vis/DisplayObject.kt
@@ -21,7 +21,7 @@ interface DisplayObject {
 //     */
 //    val type: String
 
-    val properties: MutableMeta<*>
+    val properties: Styled
 
     companion object {
         const val DEFAULT_TYPE = ""
@@ -63,15 +63,14 @@ val DisplayObject.meta: Meta get() = properties[META_KEY]?.node ?: EmptyMeta
 
 val DisplayObject.tags: List<String> get() = properties[TAGS_KEY].stringList
 
-///**
-// * Basic [DisplayObject] leaf element
-// */
-//open class DisplayLeaf(
-//    override val parent: DisplayObject?,
-////    override val type: String,
-//    meta: Meta = EmptyMeta
-//) : DisplayObject {
-//    final override val properties = Styled(meta)
-//}
+/**
+ * Basic [DisplayObject] leaf element
+ */
+open class DisplayLeaf(
+    override val parent: DisplayObject?,
+    meta: Meta = EmptyMeta
+) : DisplayObject {
+    final override val properties = Styled(meta)
+}
 
 interface DisplayGroup: DisplayObject, Iterable<DisplayObject>
diff --git a/dataforge-vis-fx/src/main/kotlin/hep/dataforge/vis/fx/demo/MetaEditorDemo.kt b/dataforge-vis-fx/src/main/kotlin/hep/dataforge/vis/fx/demo/MetaEditorDemo.kt
index 73419942..35dfbb67 100644
--- a/dataforge-vis-fx/src/main/kotlin/hep/dataforge/vis/fx/demo/MetaEditorDemo.kt
+++ b/dataforge-vis-fx/src/main/kotlin/hep/dataforge/vis/fx/demo/MetaEditorDemo.kt
@@ -20,7 +20,7 @@ class MetaEditorDemo : View("Meta editor demo") {
             "innerNode" to {
                 "innerValue" to true
             }
-            "b" to 22
+            "b" to 223
             "c" to "StringValue"
         }
     }.toConfig()
@@ -40,6 +40,10 @@ class MetaEditorDemo : View("Meta editor demo") {
                 }
             }
         }
+        value("multiple"){
+            info = "A sns value"
+            multiple = true
+        }
     }
 
     private val rootNode = FXMeta.root(meta,descriptor)
diff --git a/dataforge-vis-fx/src/main/kotlin/hep/dataforge/vis/fx/meta/ConfigEditor.kt b/dataforge-vis-fx/src/main/kotlin/hep/dataforge/vis/fx/meta/ConfigEditor.kt
index ea5e21c9..71635489 100644
--- a/dataforge-vis-fx/src/main/kotlin/hep/dataforge/vis/fx/meta/ConfigEditor.kt
+++ b/dataforge-vis-fx/src/main/kotlin/hep/dataforge/vis/fx/meta/ConfigEditor.kt
@@ -19,12 +19,13 @@ import org.controlsfx.glyphfont.Glyph
 import tornadofx.*
 
 /**
- * FXML Controller class
+ * A configuration editor fragment
  *
  * @author Alexander Nozik
  */
 class ConfigEditor(
     val rootNode: FXMetaNode<Config>,
+    val allowNew: Boolean = true,
     title: String = "Configuration editor"
 ) : Fragment(title = title, icon = dfIconView) {
 
@@ -129,26 +130,30 @@ class ConfigEditor(
                             graphic = chooser.node
                         }
                         is FXMetaNode<Config> -> {
-                            text = null
-                            graphic = hbox {
-                                button("node", Glyph("FontAwesome", "PLUS_CIRCLE")) {
-                                    hgrow = Priority.ALWAYS
-                                    maxWidth = Double.POSITIVE_INFINITY
-                                    action {
-                                        showNodeDialog()?.let {
-                                            item.addNode(it)
-                                        }
-                                    }
-                                }
-                                button("value", Glyph("FontAwesome", "PLUS_SQUARE")) {
-                                    hgrow = Priority.ALWAYS
-                                    maxWidth = Double.POSITIVE_INFINITY
-                                    action {
-                                        showValueDialog()?.let {
-                                            item.addValue(it)
+                            if(allowNew) {
+                                text = null
+                                graphic = hbox {
+                                    button("node", Glyph("FontAwesome", "PLUS_CIRCLE")) {
+                                        hgrow = Priority.ALWAYS
+                                        maxWidth = Double.POSITIVE_INFINITY
+                                        action {
+                                            showNodeDialog()?.let {
+                                                item.addNode(it)
+                                            }
+                                        }
+                                    }
+                                    button("value", Glyph("FontAwesome", "PLUS_SQUARE")) {
+                                        hgrow = Priority.ALWAYS
+                                        maxWidth = Double.POSITIVE_INFINITY
+                                        action {
+                                            showValueDialog()?.let {
+                                                item.addValue(it)
+                                            }
                                         }
                                     }
                                 }
+                            } else {
+                                text = ""
                             }
                         }
                     }
diff --git a/dataforge-vis-fx/src/main/kotlin/hep/dataforge/vis/fx/meta/FXMeta.kt b/dataforge-vis-fx/src/main/kotlin/hep/dataforge/vis/fx/meta/FXMeta.kt
index 625c1ba3..7010b044 100644
--- a/dataforge-vis-fx/src/main/kotlin/hep/dataforge/vis/fx/meta/FXMeta.kt
+++ b/dataforge-vis-fx/src/main/kotlin/hep/dataforge/vis/fx/meta/FXMeta.kt
@@ -168,7 +168,7 @@ fun <M : MutableMeta<M>> FXMetaNode<M>.remove(name: NameToken) {
     children.invalidate()
 }
 
-private fun <M : MutableMeta<M>> M.createEmptyNode(token: NameToken): M {
+private fun <M : MutableMeta<M>> M.createEmptyNode(token: NameToken, append: Boolean): M {
     this.setNode(token.asName(), EmptyMeta)
     //FIXME possible concurrency bug
     return get(token).node!!
@@ -178,7 +178,7 @@ fun <M : MutableMeta<M>> FXMetaNode<out M>.getOrCreateNode(): M {
     val node = node
     return when {
         node != null -> node
-        parent != null -> parent.getOrCreateNode().createEmptyNode(this.name).also {
+        parent != null -> parent.getOrCreateNode().createEmptyNode(this.name, descriptor?.multiple == true).also {
             parent.children.invalidate()
         }
         else -> kotlin.error("Orphan empty node is not allowed")
@@ -191,13 +191,27 @@ fun <M : MutableMeta<M>> FXMeta<M>.remove() {
 }
 
 fun <M : MutableMeta<M>> FXMetaNode<M>.addValue(key: String) {
-    getOrCreateNode()[key] = Null
+    val parent = getOrCreateNode()
+    if(descriptor?.multiple == true){
+        parent.append(key, Null)
+    } else{
+        parent[key] = Null
+    }
 }
 
 fun <M : MutableMeta<M>> FXMetaNode<M>.addNode(key: String) {
-    getOrCreateNode()[key] = EmptyMeta
+    val parent = getOrCreateNode()
+    if(descriptor?.multiple == true){
+        parent.append(key, EmptyMeta)
+    } else{
+        parent[key] = EmptyMeta
+    }
 }
 
 fun <M : MutableMeta<M>> FXMetaValue<M>.set(value: Value?) {
-    parent.getOrCreateNode()[this.name] = value
+    if(descriptor?.multiple == true){
+        parent.getOrCreateNode().append(this.name.body, value)
+    } else {
+        parent.getOrCreateNode()[this.name] = value
+    }
 }
\ No newline at end of file
diff --git a/dataforge-vis-spatial-fx/src/main/kotlin/hep/dataforge/vis/DisplayObjectFXListener.kt b/dataforge-vis-spatial-fx/src/main/kotlin/hep/dataforge/vis/spatial/DisplayObjectFXListener.kt
similarity index 90%
rename from dataforge-vis-spatial-fx/src/main/kotlin/hep/dataforge/vis/DisplayObjectFXListener.kt
rename to dataforge-vis-spatial-fx/src/main/kotlin/hep/dataforge/vis/spatial/DisplayObjectFXListener.kt
index a66ad8ca..f7c626fa 100644
--- a/dataforge-vis-spatial-fx/src/main/kotlin/hep/dataforge/vis/DisplayObjectFXListener.kt
+++ b/dataforge-vis-spatial-fx/src/main/kotlin/hep/dataforge/vis/spatial/DisplayObjectFXListener.kt
@@ -1,8 +1,11 @@
-package hep.dataforge.vis
+package hep.dataforge.vis.spatial
 
 import hep.dataforge.meta.*
 import hep.dataforge.names.Name
 import hep.dataforge.names.toName
+import hep.dataforge.vis.DisplayObject
+import hep.dataforge.vis.getProperty
+import hep.dataforge.vis.onChange
 import javafx.beans.binding.ObjectBinding
 import tornadofx.*
 
@@ -21,7 +24,7 @@ class DisplayObjectFXListener(val obj: DisplayObject) {
     operator fun get(key: Name): ObjectBinding<MetaItem<*>?> {
         return binndings.getOrPut(key) {
             object : ObjectBinding<MetaItem<*>?>() {
-                override fun computeValue(): MetaItem<*>? = obj.get(key)
+                override fun computeValue(): MetaItem<*>? = obj.getProperty(key)
             }
         }
     }
diff --git a/dataforge-vis-spatial-fx/src/main/kotlin/hep/dataforge/vis/spatial/FX3DOutput.kt b/dataforge-vis-spatial-fx/src/main/kotlin/hep/dataforge/vis/spatial/FX3DOutput.kt
index 04a67005..b8186b13 100644
--- a/dataforge-vis-spatial-fx/src/main/kotlin/hep/dataforge/vis/spatial/FX3DOutput.kt
+++ b/dataforge-vis-spatial-fx/src/main/kotlin/hep/dataforge/vis/spatial/FX3DOutput.kt
@@ -3,7 +3,8 @@ package hep.dataforge.vis.spatial
 import hep.dataforge.context.Context
 import hep.dataforge.meta.Meta
 import hep.dataforge.output.Output
-import hep.dataforge.vis.*
+import hep.dataforge.vis.DisplayGroup
+import hep.dataforge.vis.DisplayObject
 import javafx.scene.Group
 import javafx.scene.Node
 import org.fxyz3d.shapes.primitives.CuboidMesh
@@ -26,7 +27,7 @@ class FX3DOutput(override val context: Context) : Output<DisplayObject> {
             org.fxyz3d.geometry.Point3D(x.value ?: 0f, y.value ?: 0f, z.value ?: 0f)
         }
         return when (obj) {
-            is DisplayGroup -> Group(obj.children.map { buildNode(it) }).apply {
+            is DisplayGroup -> Group(obj.map { buildNode(it) }).apply {
                 this.translateXProperty().bind(x)
                 this.translateYProperty().bind(y)
                 this.translateZProperty().bind(z)
diff --git a/dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/ThreeFactory.kt b/dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/ThreeFactory.kt
index 118c6126..92d866c4 100644
--- a/dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/ThreeFactory.kt
+++ b/dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/ThreeFactory.kt
@@ -3,7 +3,7 @@ package hep.dataforge.vis.spatial
 import hep.dataforge.meta.boolean
 import hep.dataforge.provider.Type
 import hep.dataforge.vis.DisplayObject
-import hep.dataforge.vis.get
+import hep.dataforge.vis.getProperty
 import hep.dataforge.vis.onChange
 import hep.dataforge.vis.spatial.ThreeFactory.Companion.TYPE
 import hep.dataforge.vis.spatial.ThreeFactory.Companion.buildMesh
@@ -20,7 +20,7 @@ import info.laht.threekt.objects.LineSegments
 import info.laht.threekt.objects.Mesh
 import kotlin.reflect.KClass
 
-internal val DisplayObject.material get() = this["color"].material()
+internal val DisplayObject.material get() = getProperty("color").material()
 
 /**
  * Builder and updater for three.js object
@@ -49,13 +49,13 @@ interface ThreeFactory<T : DisplayObject> {
 
         internal fun buildMesh(obj: DisplayObject, geometry: BufferGeometry): Mesh {
             val mesh = Mesh(geometry, obj.material)
-            if (obj["edges.enabled"]?.boolean != false) {
-                val material = obj["edges.material"]?.material() ?: Materials.DEFAULT
+            if (obj.getProperty("edges.enabled")?.boolean != false) {
+                val material = obj.getProperty("edges.material")?.material() ?: Materials.DEFAULT
                 mesh.add(LineSegments(EdgesGeometry(mesh.geometry as BufferGeometry), material))
             }
 
-            if (obj["wireframe.enabled"]?.boolean == true) {
-                val material = obj["edges.material"]?.material() ?: Materials.DEFAULT
+            if (obj.getProperty("wireframe.enabled")?.boolean == true) {
+                val material = obj.getProperty("edges.material")?.material() ?: Materials.DEFAULT
                 mesh.add(LineSegments(WireframeGeometry(mesh.geometry as BufferGeometry), material))
             }
             return mesh
diff --git a/dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/ThreeOutput.kt b/dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/ThreeOutput.kt
index c9d2592e..71c7b1c8 100644
--- a/dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/ThreeOutput.kt
+++ b/dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/ThreeOutput.kt
@@ -64,7 +64,7 @@ class ThreeOutput(override val context: Context, val meta: Meta = EmptyMeta) : O
 
     private fun buildNode(obj: DisplayObject): Object3D? {
         return when (obj) {
-            is DisplayGroup -> Group(obj.children.mapNotNull { buildNode(it) }).apply {
+            is DisplayGroup -> Group(obj.mapNotNull { buildNode(it) }).apply {
                 ThreeFactory.updatePosition(obj, this)
             }
             //is Box -> ThreeBoxFactory(obj)
diff --git a/dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/gdml/ThreeGDMLFactory.kt b/dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/gdml/ThreeGDMLFactory.kt
index add4c71f..39de3382 100644
--- a/dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/gdml/ThreeGDMLFactory.kt
+++ b/dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/gdml/ThreeGDMLFactory.kt
@@ -16,7 +16,7 @@ import info.laht.threekt.core.BufferGeometry
 
 
 class GDMLShape(parent: DisplayObject?, meta: Meta, val shape: GDMLSolid) :
-    DisplayLeaf(parent, "$TYPE.${shape.type}", meta) {
+    DisplayLeaf(parent, meta) {
 
     var facesLimit by int(0)
 
diff --git a/dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/jsroot/JSRootGeometry.kt b/dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/jsroot/JSRootGeometry.kt
index 7351b23c..a5550d87 100644
--- a/dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/jsroot/JSRootGeometry.kt
+++ b/dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/jsroot/JSRootGeometry.kt
@@ -8,7 +8,7 @@ import hep.dataforge.vis.*
 import hep.dataforge.vis.spatial.MeshThreeFactory
 import info.laht.threekt.core.BufferGeometry
 
-class JSRootGeometry(parent: DisplayObject?, meta: Meta) : DisplayLeaf(parent, TYPE, meta) {
+class JSRootGeometry(parent: DisplayObject?, meta: Meta) : DisplayLeaf(parent, meta) {
 
     var shape by node()
 
@@ -53,7 +53,7 @@ class JSRootGeometry(parent: DisplayObject?, meta: Meta) : DisplayLeaf(parent, T
     }
 }
 
-fun DisplayGroup.jsRootGeometry(meta: Meta = EmptyMeta, action: JSRootGeometry.() -> Unit = {}) =
+fun DisplayObjectList.jsRootGeometry(meta: Meta = EmptyMeta, action: JSRootGeometry.() -> Unit = {}) =
     JSRootGeometry(this, meta).apply(action).also { addChild(it) }
 
 //fun Meta.toDynamic(): dynamic {
diff --git a/dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/jsroot/JSRootObject.kt b/dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/jsroot/JSRootObject.kt
index f049b959..54252826 100644
--- a/dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/jsroot/JSRootObject.kt
+++ b/dataforge-vis-spatial-js/src/main/kotlin/hep/dataforge/vis/spatial/jsroot/JSRootObject.kt
@@ -3,14 +3,14 @@ package hep.dataforge.vis.spatial.jsroot
 import hep.dataforge.meta.EmptyMeta
 import hep.dataforge.meta.Meta
 import hep.dataforge.meta.toDynamic
-import hep.dataforge.vis.DisplayGroup
 import hep.dataforge.vis.DisplayLeaf
 import hep.dataforge.vis.DisplayObject
+import hep.dataforge.vis.DisplayObjectList
 import hep.dataforge.vis.node
 import hep.dataforge.vis.spatial.ThreeFactory
 import info.laht.threekt.core.Object3D
 
-class JSRootObject(parent: DisplayObject?, meta: Meta, val data: dynamic) : DisplayLeaf(parent, TYPE, meta) {
+class JSRootObject(parent: DisplayObject?, meta: Meta, val data: dynamic) : DisplayLeaf(parent, meta) {
 
     var options by node()
 
@@ -28,7 +28,7 @@ object ThreeJSRootObjectFactory : ThreeFactory<JSRootObject> {
     }
 }
 
-fun DisplayGroup.jsRootObject(str: String) {
+fun DisplayObjectList.jsRootObject(str: String) {
     val json = JSON.parse<Any>(str)
     JSRootObject(this, EmptyMeta, json).also { addChild(it) }
 }
\ No newline at end of file
diff --git a/dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/Box.kt b/dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/Box.kt
index 92d40a08..fdbe24d3 100644
--- a/dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/Box.kt
+++ b/dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/Box.kt
@@ -2,10 +2,12 @@ package hep.dataforge.vis.spatial
 
 import hep.dataforge.meta.EmptyMeta
 import hep.dataforge.meta.Meta
+import hep.dataforge.vis.DisplayLeaf
 import hep.dataforge.vis.DisplayObject
 import hep.dataforge.vis.DisplayObjectList
+import hep.dataforge.vis.double
 
-class Box(parent: DisplayObject?, meta: Meta) : DisplayLeaf(parent, TYPE, meta) {
+class Box(parent: DisplayObject?, meta: Meta) : DisplayLeaf(parent, meta) {
     var xSize by double(1.0)
     var ySize by double(1.0)
     var zSize by double(1.0)
diff --git a/dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/Convex.kt b/dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/Convex.kt
index 9b921e22..70b1fe3e 100644
--- a/dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/Convex.kt
+++ b/dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/Convex.kt
@@ -2,10 +2,11 @@ package hep.dataforge.vis.spatial
 
 import hep.dataforge.meta.*
 import hep.dataforge.names.toName
+import hep.dataforge.vis.DisplayLeaf
 import hep.dataforge.vis.DisplayObject
 import hep.dataforge.vis.DisplayObjectList
 
-class Convex(parent: DisplayObject?, meta: Meta) : DisplayLeaf(parent, TYPE, meta) {
+class Convex(parent: DisplayObject?, meta: Meta) : DisplayLeaf(parent, meta) {
 
     val points = points(properties["points"] ?: error("Vertices not defined"))
 
diff --git a/dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/Extruded.kt b/dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/Extruded.kt
index 6cdd04c8..3c027e36 100644
--- a/dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/Extruded.kt
+++ b/dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/Extruded.kt
@@ -2,10 +2,11 @@ package hep.dataforge.vis.spatial
 
 import hep.dataforge.meta.*
 import hep.dataforge.names.toName
+import hep.dataforge.vis.DisplayLeaf
 import hep.dataforge.vis.DisplayObject
 import hep.dataforge.vis.DisplayObjectList
 
-class Extruded(parent: DisplayObject?, meta: Meta) : DisplayLeaf(parent, TYPE, meta) {
+class Extruded(parent: DisplayObject?, meta: Meta) : DisplayLeaf(parent, meta) {
 
     val shape get() = shape(properties["shape"] ?: error("Shape not defined"))
 
diff --git a/dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/displayObject3D.kt b/dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/displayObject3D.kt
index bd5d2e6d..75507d5e 100644
--- a/dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/displayObject3D.kt
+++ b/dataforge-vis-spatial/src/commonMain/kotlin/hep/dataforge/vis/spatial/displayObject3D.kt
@@ -4,16 +4,15 @@ import hep.dataforge.meta.*
 import hep.dataforge.output.Output
 import hep.dataforge.vis.DisplayGroup
 import hep.dataforge.vis.DisplayObject
-import hep.dataforge.vis.DisplayObject.Companion.DEFAULT_TYPE
 import hep.dataforge.vis.DisplayObjectList
 import hep.dataforge.vis.getProperty
 
 fun DisplayObjectList.group(meta: Meta = EmptyMeta, action: DisplayObjectList.() -> Unit = {}): DisplayGroup =
-    DisplayObjectList(this, DEFAULT_TYPE, meta).apply(action).also { addChild(it) }
+    DisplayObjectList(this, meta).apply(action).also { addChild(it) }
 
 
 fun Output<DisplayObject>.render(meta: Meta = EmptyMeta, action: DisplayObjectList.() -> Unit) =
-    render(DisplayObjectList(null, DEFAULT_TYPE, EmptyMeta).apply(action), meta)
+    render(DisplayObjectList(null, EmptyMeta).apply(action), meta)
 
 //TODO replace properties by containers?
 
diff --git a/dataforge-vis-spatial/src/commonTest/kotlin/hep/dataforge/vis/spatial/ConvexTest.kt b/dataforge-vis-spatial/src/commonTest/kotlin/hep/dataforge/vis/spatial/ConvexTest.kt
index 7d8fbb58..b5da0d3b 100644
--- a/dataforge-vis-spatial/src/commonTest/kotlin/hep/dataforge/vis/spatial/ConvexTest.kt
+++ b/dataforge-vis-spatial/src/commonTest/kotlin/hep/dataforge/vis/spatial/ConvexTest.kt
@@ -1,5 +1,8 @@
 package hep.dataforge.vis.spatial
 
+import hep.dataforge.meta.get
+import hep.dataforge.meta.getAll
+import hep.dataforge.meta.node
 import hep.dataforge.names.toName
 import hep.dataforge.vis.DisplayObjectList
 import kotlin.test.Test