diff --git a/action.go b/action.go
index 735a13a..aa3c4d2 100644
--- a/action.go
+++ b/action.go
@@ -103,6 +103,14 @@ func show(n *tree.Node, b bool) {
 	}
 }
 
+func enableWidget(n *tree.Node) {
+	enable(n, true)
+}
+
+func disableWidget(n *tree.Node) {
+	enable(n, false)
+}
+
 func enable(n *tree.Node, b bool) {
 	if !ready(n) {
 		return
diff --git a/treeInit.go b/treeInit.go
index c51a9fe..78ff4fb 100644
--- a/treeInit.go
+++ b/treeInit.go
@@ -60,6 +60,10 @@ func initTree() *tree.TreeInfo {
 	t.SetLabel = setLabel
 	t.SetText = setText
 	t.AddText = addText
+
+	t.Enable = enableWidget
+	t.Disable = disableWidget
+
 	t.SetChecked = setChecked
 	t.ToolkitClose = toolkitClose
 	t.ShowTable = showTable