A question about .liga and .calt

I set up a ligature s_t.liga and would also like it to make the cross of the t get longer at the end of the word, so I made s_t.fina, and the code is fine. but it doesn’t work . And the the other single letters’ setup worked well.

Does anyone know how to implement this idea? I hope it works automatically in liga and calt instead of manually selecting Stylistic sets.

Call it s_t.liga.fina, make sure the fina feature comes after liga in Font Info > Features, and add a calt feature afterwards. For the calt code, see the tutorial on ‘positional alternates’.