Vimar Curtain control

Hi all,
my name is Cristiano.
I have a lot Vimar “Linea” series devices connected in zigbee on my HA via ZHA.
No problem with all devices but courtain control doesn’t work in right way IMHO.
I can open and Close Courtains, of course, but I can’t set position with time (for example) because I can’t read any event when I press button physically.

Someone with same problem?
Any way to solve?

Thank you so much

Cristiano