I tested on
- Prologue-8 and no portamento for arpeggiator by default 'auto' portamento, but setting to 'on'(edit button 6) it works too
- Nordlead 2X portamento is working by default
I think it is very neat with portamento/glide working there too. I had one sound like a glockenspiel and it became whistles kind of, really cute.
I don't know if it takes a lot of processor power to generate glide for voices, on top of every thing else.
Many stellar options in PB for arpeggiator anyway.
I remember looking into REV2 gated sequencer thinking of getting one and they had issues reported on forum where slew thingy were clear steps in pitch, not smooth. They have 4x16 gated sequencers and one row is occupied if entering slew on another row.
So PB is alone in skipping glide in arp unless is setting like on Prologue exist.
But you can do it by modulation for sure. I use ENV 3 a lot for some pitch envelope stuff.
So something similar in PB sequencer I believe, where you enter a slide in a position, will see if that is smooth or steps like for REV2. That will be when deep mining more into sequencer.