public bool ActivateControlsAndDimensionsOnMultiSelect { get; set; }

Public Property ActivateControlsAndDimensionsOnMultiSelect As Boolean
	Get
	Set

public:
property bool ActivateControlsAndDimensionsOnMultiSelect {
	bool get ();
	void set (bool value);
}

Revit always shows certain controls and temporary dimensions for a single selected element When this option is set Revit also shows these controls and dimensions when multiple elements are selected. Note that this setting takes effect on the next selection change. To have this change take effect immediately use

CopyC#

Selection.SetElementIds(Selection.GetElementIds());