Hey Niels,
Happy that it mostly worked for you

For the size control take this in mind:
On 16ch mode:
- pattern size is focus fader (controlling ch 6 )
- pattern X size is X fader (controlling ch 7 )
- pattern Y size is Y fader (controlling ch 8 )
On 26ch mode:
- pattern size is focus fader (controlling ch 5 and 6 )
- pattern X size is Iris ader (controlling ch 7 and 8 )
- pattern Y size is Zoom fader (controlling ch 9 and ch 10 )
Hope this helps!