Search feature in Tree UIBB

Hi,

I'm currently working with a tree UIBB. Now I want to add a search button to the UIBB.

I have filled the search component of structure ES_OPTION in method GET_DEFINITION. When I want to just activate the search in FLUID I get an exception.

I have to add a random toolbar element or a separator first in order to be able to activate the search without an exception. Is this really necessary or did I miss something?

After I've added a separator to the toolbar, I can see the search button in my tree UIBB. But when I click on the button nothing happens. I can see that the event FPM_GUIBB_OPEN_SEARCH is thrown, but there is no window opening to enter the search criteria. Do I have to do anything else to activate the search?

I have tried with search option 'enabled' as well as with search option 'dynamic'.

Best regards,

Rebekka