Ah I thought you were talking about the different rates the sequence can run at.
You are correct about Korg using 2ppqn, as do Teenage Engineering (weirdos, but Korg have a history of doing thing different to everyone else CV/Trig wise).
Yeah I agree it's annoying that the Keystep does 2ppqn and the BSP doesn't, but I have both, so I can clock my Volca and Pocket Operator with the Keystep
Okay, here is a work-around for BSP->Volca/TE: Use one of your drum tracks to send a pulse to the Volca by setting it to send a GATE signal to the Volca at double the tempo. I run my Rhythm Wolf using drum track 8. It steps forward once each pulse it receives (1ppqn). So to run a step-sequencer that steps forward every two pulses, run the Volca at double time. If the BSP drum track is running at 1/16, send the Volca a Gate pulse every step and run the Volca at 1/32, or run the BSP drum track at half-time that which you want the Volca to run.