How to insert the GOS-Toolbox into the Button-Line of Grid Custom Control?

Hello All,

I know how to add the GOS-Toolbox into any Dynpro, the box will get

displayed in the report header.

But in my case I'd like to insert it into the Header line of the

Custom Control of type cl_gui_custom_container?

Any ideas about that ?

Thank you in advance, Markus Hapke