Ignore base glyphs

[NinnaD]

I think I'm on the right track:

mama.png (15.48 KiB) Viewed 974 times

M2B positioning, followed by chained context positioning for base glyphs; M2M positioning, followed by chained context positioning for marks, with single adjustment to move upwards.
I'll see if I can widen the scope.

[Erwin Denissen]

Good to know you are making further progress on this!

[NinnaD]

Yep, my entire household heaved a sigh of relief. Now I know the method, sth clicked and (after deleting 1 feature that blocked my previous attempts) I can make it progressively more complex.
Thank you again for your help!