Blueprint Dropdown with vCO Questin and dynamic/internal input-parameters

Hi,

I try to display a dropdown Box in a Blueprint request - using an vco external Value which is working fine so far.

But the vCO action needs to get a input parameter for tenant and subtenant/business group. Is it possible to pass this internal variables to the vCO Action ?

I tested everything but I can only pass a custom property that is defined in the blueprint - which is not dynamic.

Thanks

Jens