Yes, note length (Len) sets the duration of the note in seq steps, but I thought we were talking about envF gate length and env2 gate length?
EnvF gate length sets the duration of the filter envelope in seq steps and env2 gate length sets the duration of env2 in seq steps, no? (EnvF gate length and env2 gate length are not a multipliers).
What I wrote about mulitplier above can’t be true, though. I edited it. I had a note length of 1 in mind when I thought about the behaviour. It’s probaply simply seq steps.