Configuration external blinds with time

Hi there,

i operate my external Venetian blinds with a Homematic actuator/switch, type: BBL. I have integrated all actuators from my CCU3 into Home Assistant and now want to smartly control the external Venetian blinds. Unfortunately, I am completely overwhelmed with the configuration and can’t manage it. My requirement is:

The external Venetian blinds should close at sunset. I can manage that to some extent, but now comes the tricky part. I want the blinds to only lower to 80%, because our children often leave things lying around, and we had to replace a blind because of this. Is it possible for the blind to stop lowering after 10 seconds? I just can’t figure it out. I don’t even know how to configure this.

Could someone help me?

Best regards,

Maris