Feibit FB56+CUR17SB2.2 (Dooya, Nue, 3a) roller blind

Anyone been able to get a Feibit FB56+CUR17SB2.2 (Dooya, Nue, 3a) roller blind to work. I've got it installed and it will open and close but I'm trying to get it to stop at different levels (50% closed, 75% closed to follow the sun on the west side of my house). Any ideas?

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