RTS Roller shutter - Intermediate position

[StephanH27]

I just install this plugin on my Home<bridge (Synology)
I can open or close my shutters, but not select an intermediate position.

Do I need to make a special configuration ?

[zakrabdea]

In my understanding, it's not possible to select an intermediate position.
We can use My button to use in advance a specific position but it's not implemented in the plugging.
Is it possible that the developers of Tahoma plugin to add this feature to be able add "My" button ??