protected override void OnExecuted(EventArgs e)
{
base.OnExecuted(e);
var renameDialog = new GetStringDialog("Rename Block");
if (renameDialog.ShowModal() == DialogResult.Ok)
{
var doc = RhinoDoc.ActiveDoc;
Actions.RenameInstanceDefinitions(_definitions, doc, renameDialog.StringResult);
doc.Modified = true;
}
}