To select a KryptonGroup instance at design time requires you to click on the single pixel border of the control. This behavior is just plain irratating; so a new selection glyph has been added.
Here is a KryptonGroup instance at design time.

To simplify selection I now show a selection glyph in the bottom right corner of the control when the mouse is hovering inside the client area.

Clicking on the glyph causes the whole KryptonGroup to become selected instead of selecting the contained panel. Here it what you see when you click the glyph.

If you do actually want to select the internal panel then you just click in the panel area but not on the glyph itself. Like this.

This is such a simple and effective technique I decided to extend it to all the krypton controls that have contained panels. Here are the KryptonHeaderGroup, KryptonSplitContainer and KryptonNavigator all showing the new glyph which when pressed selects the whole control.



Using the glyph honors all the selection semantics. So if you are keeping the SHIFT key down to create a multiple selection then pressing the glyph will add the control to the selection.