Although I’m delighted with Pigments 5, I’m disappointed that the sequencer step limit is still 16. To get around this I sometimes use multiple sequences, save them in Ableton session clips and then add them all together. I also use Stepic with Pigments which has 16 steps with 16 banks (256 steps) and it is fantastic. But it would be nicer to just use an extended sequencer in Pigments (even 4 banks would be great).
I’ll log this as a feature request for you so our team are aware of it.