diff --git a/numass-data-proto/src/main/kotlin/ru/inr/mass/data/proto/TaggedNumassEnvelopeFormat.kt b/numass-data-proto/src/main/kotlin/ru/inr/mass/data/proto/TaggedNumassEnvelopeFormat.kt
index 7be3302..5266e8d 100644
--- a/numass-data-proto/src/main/kotlin/ru/inr/mass/data/proto/TaggedNumassEnvelopeFormat.kt
+++ b/numass-data-proto/src/main/kotlin/ru/inr/mass/data/proto/TaggedNumassEnvelopeFormat.kt
@@ -103,7 +103,7 @@ public class TaggedNumassEnvelopeFormat(private val io: IOPlugin) : EnvelopeForm
         IOFormat.NAME_KEY put name.toString()
     }
 
-    companion object : EnvelopeFormatFactory {
+    public companion object : EnvelopeFormatFactory {
         private const val START_SEQUENCE = "#!"
         private const val END_SEQUENCE = "!#\r\n"
 
diff --git a/numass-workspace/src/main/kotlin/ru/inr/mass/scripts/gun_2021_11.kt b/numass-workspace/src/main/kotlin/ru/inr/mass/scripts/gun_2021_11.kt
new file mode 100644
index 0000000..01e1064
--- /dev/null
+++ b/numass-workspace/src/main/kotlin/ru/inr/mass/scripts/gun_2021_11.kt
@@ -0,0 +1,38 @@
+package ru.inr.mass.scripts
+
+import ru.inr.mass.data.api.channels
+import ru.inr.mass.data.proto.NumassDirectorySet
+import ru.inr.mass.workspace.Numass.readRepository
+import space.kscience.dataforge.data.DataTree
+import space.kscience.dataforge.data.await
+import space.kscience.dataforge.data.data
+import space.kscience.plotly.Plotly
+import space.kscience.plotly.histogram
+import space.kscience.plotly.makeFile
+
+suspend fun main() {
+    val repo: DataTree<NumassDirectorySet> = readRepository("D:\\Work\\Numass\\data\\2021_11\\Adiabacity_17\\")
+
+    //select point number 2 (U = 16900 V) from each directory
+    val points = repo.items().mapValues {
+        val directory = it.value.data?.await()
+        val point = directory?.points?.find { it.voltage == 16900.0 }
+        point
+    }
+
+    Plotly.plot {
+        points.forEach { name, point ->
+            if (point != null) {
+                histogram {
+                    this.name = name.toString()
+                    xbins {
+                        size = 4.0
+                    }
+                    x.numbers = point.frames.tqdcAmplitudes()
+                }
+            }
+        }
+    }.makeFile()
+
+
+}
\ No newline at end of file
diff --git a/numass-workspace/src/main/kotlin/ru/inr/mass/scripts/run_2019_11.kt b/numass-workspace/src/main/kotlin/ru/inr/mass/scripts/run_2019_11.kt
new file mode 100644
index 0000000..9c673e1
--- /dev/null
+++ b/numass-workspace/src/main/kotlin/ru/inr/mass/scripts/run_2019_11.kt
@@ -0,0 +1,9 @@
+package ru.inr.mass.scripts
+
+import kotlinx.coroutines.flow.toList
+import ru.inr.mass.workspace.Numass.readPoint
+
+suspend fun main() {
+    val point = readPoint("D:\\Work\\Numass\\data\\2019_11\\Fill_3\\set_2\\p2(30s)(HV1=14000)")
+    val events = point.events.toList()
+}
\ No newline at end of file
diff --git a/numass-workspace/src/main/kotlin/ru/inr/mass/scripts/run_2021_11.kt b/numass-workspace/src/main/kotlin/ru/inr/mass/scripts/run_2021_11.kt
index e653fde..abf3ce1 100644
--- a/numass-workspace/src/main/kotlin/ru/inr/mass/scripts/run_2021_11.kt
+++ b/numass-workspace/src/main/kotlin/ru/inr/mass/scripts/run_2021_11.kt
@@ -1,5 +1,9 @@
 package ru.inr.mass.scripts
 
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.flow.toList
+import kotlinx.coroutines.runBlocking
 import kotlinx.html.h2
 import kotlinx.html.p
 import kotlinx.serialization.json.Json
@@ -25,6 +29,10 @@ fun NumassFrame.tqdcAmplitude(): Short {
     return (max - min).toShort()
 }
 
+fun Flow<NumassFrame>.tqdcAmplitudes(): List<Short> = runBlocking {
+    map { it.tqdcAmplitude() }.toList()
+}
+
 suspend fun main() {
     //val repo: DataTree<NumassDirectorySet> = readNumassRepository("D:\\Work\\numass-data\\")
     val directory = readDirectory("D:\\Work\\Numass\\data\\test\\set_7")
diff --git a/settings.gradle.kts b/settings.gradle.kts
index 75583be..b3ec7c0 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -1,3 +1,5 @@
+rootProject.name = "numass"
+
 enableFeaturePreview("TYPESAFE_PROJECT_ACCESSORS")
 enableFeaturePreview("VERSION_CATALOGS")