Hi MDC801,
The current MCC 1.7.0.217 no longer has SEQ Length parameter for the Beatstep Pro Drum Patterns.
This is normal. With the new polyrhythm feature, every drum pad have its own length, so there is no 1 length parameter but 16 length parameters.
I am trying to just drag the end of pattern bar to the 64th step in the pattern GUI I hope that works.
Yes you got it. This is the only way to set it. Moreover, if you set "Polyrhythm" to "On", you will be able to set the 16 lengths separately.
Regards,
Y.