Just like for dimmers, there is a option (use one button) and a Shutter2B option (operate the roller shutter/motor with two buttons – Up to open, Down to close).
For a Shutter1B , you can open the roller shutter completely by pressing briefly. Operating the button when the roller shutter is running will stop the action. Pressing for a long time will lower the roller shutter.
These outputs can be controlled by means of 2 relays on a REL08 or REL04SA module.
If a ROL0xP(SA) module is used, the position of the roller shutters is kept track of by time calculation and the position can also be controlled by means of a percentage via scenes, logic, cloud, ...