diff --git a/dataforge-meta/src/commonMain/kotlin/hep/dataforge/meta/Configurable.kt b/dataforge-meta/src/commonMain/kotlin/hep/dataforge/meta/Configurable.kt
index 794292b9..0f880110 100644
--- a/dataforge-meta/src/commonMain/kotlin/hep/dataforge/meta/Configurable.kt
+++ b/dataforge-meta/src/commonMain/kotlin/hep/dataforge/meta/Configurable.kt
@@ -56,6 +56,7 @@ interface Configurable : Described, MutableItemProvider {
 /**
  * Reset the property to its default value
  */
+@Deprecated("To be removed since unused", ReplaceWith("setItem(name, null)"))
 fun Configurable.resetProperty(name: Name) {
     setItem(name, null)
 }
diff --git a/dataforge-meta/src/commonMain/kotlin/hep/dataforge/meta/ItemDelegate.kt b/dataforge-meta/src/commonMain/kotlin/hep/dataforge/meta/ItemDelegate.kt
index aa2dec23..b710735e 100644
--- a/dataforge-meta/src/commonMain/kotlin/hep/dataforge/meta/ItemDelegate.kt
+++ b/dataforge-meta/src/commonMain/kotlin/hep/dataforge/meta/ItemDelegate.kt
@@ -41,6 +41,18 @@ fun ItemProvider.boolean(key: Name? = null): ReadOnlyProperty<Any?, Boolean?> =
 fun ItemProvider.number(key: Name? = null): ReadOnlyProperty<Any?, Number?> =
     item(key).convert(MetaConverter.number)
 
+fun ItemProvider.double(key: Name? = null): ReadOnlyProperty<Any?, Double?> =
+    item(key).convert(MetaConverter.double)
+
+fun ItemProvider.float(key: Name? = null): ReadOnlyProperty<Any?, Float?> =
+    item(key).convert(MetaConverter.float)
+
+fun ItemProvider.int(key: Name? = null): ReadOnlyProperty<Any?, Int?> =
+    item(key).convert(MetaConverter.int)
+
+fun ItemProvider.long(key: Name? = null): ReadOnlyProperty<Any?, Long?> =
+    item(key).convert(MetaConverter.long)
+
 fun ItemProvider.node(key: Name? = null): ReadOnlyProperty<Any?, Meta?> =
     item(key).convert(MetaConverter.meta)
 
@@ -53,6 +65,18 @@ fun ItemProvider.boolean(default: Boolean, key: Name? = null): ReadOnlyProperty<
 fun ItemProvider.number(default: Number, key: Name? = null): ReadOnlyProperty<Any?, Number> =
     item(key).convert(MetaConverter.number) { default }
 
+fun ItemProvider.double(default: Double, key: Name? = null): ReadOnlyProperty<Any?, Double> =
+    item(key).convert(MetaConverter.double) { default }
+
+fun ItemProvider.float(default: Float, key: Name? = null): ReadOnlyProperty<Any?, Float> =
+    item(key).convert(MetaConverter.float) { default }
+
+fun ItemProvider.int(default: Int, key: Name? = null): ReadOnlyProperty<Any?, Int> =
+    item(key).convert(MetaConverter.int) { default }
+
+fun ItemProvider.long(default: Long, key: Name? = null): ReadOnlyProperty<Any?, Long> =
+    item(key).convert(MetaConverter.long) { default }
+
 inline fun <reified E : Enum<E>> ItemProvider.enum(default: E, key: Name? = null): ReadOnlyProperty<Any?, E> =
     item(key).convert(MetaConverter.enum()) { default }