@Peterjc, are you experiencing this with your Syntakt? Can you confirm the misbehaviour?
According to the Syntakt manual, CH.LEN should work the way we’re all saying it should work (rather than the CHNG actually works on my Rytm).
It seems ridiculous that not only Elektron can’t/won’t fix it… they also perpetuated the misinformation in the manual for their newest instrument. The least they could do is correct the manual to match the behaviour. I’ve read somewhere here that there’s internal company politics around these aspects of the sequencer. I can imagine that happening around the implementation, due to historical code, long term customers etc… but I’m really struggling to understand how the politics could be so bad that the manuals are allowed to be wrong even for brand new devices (@elektron).