Combo-box or OVS inside another OVS

Hello,

I have a question about OVS. I have created an OVS, it uses a BAPI to search the result. The problem is that I want to have a combo-box (“select” in html…) in one of the OVS input fields, the combo is filled with a other bapi results. Is this possible?

Other solution could be adding an OVS inside another OVS, can I do this?

Regards and many thanks.

Pablo.