@droftarts yes, I tried both Orca and Prusa, same.
Is group identical tools hiding them or what is the catch there?
I'll post on Thingie just have to change 2 holes for the spring bar which keeps the extruder idler open when not required, it makes filament path smoother.
Also it is designed for BMG clones, clear plastic ones, they are 2mm narrower than black ones. Didn't know this initially.
Will check expansion you posted for Duet 2.
Chameleon is a bit tricky as it is tight, springs inside held between 2 halves, I like the concept but not the design of it. I think this is why it didn't get to the users enough. Shame really.
Arduino and shield are working fine though and the concept I like really.
Must go deeper into what you mentioned to have it controlled by Duet.