Hi 
!
You can do that with an automation using a device trigger (KNX Interface device) (or a knx_event event) with the Group address and payload you like to call the cover.open_cover or cover.close_cover service (or maybe a they have device actions, I don’t know).
Here would be a blueprint for that Cover Blueprint how to make destination in KNX work with appended text? and here is another example using knx_event KNX: Expose cover to KNX - #4 by jogie