Add a swim speed
 

How do I add a movement type to a PF2 character? In Starfinder HLO it's on the adjustments tab, but doesn't seem to be there for PF2. There are options to adjust an existing movement type, but no way that I can find to add one.

Submit a bug report/feature request for that please, that adding movement types is missing from Added Abilities. Pretty sure it's because that table is set up for just abilities, and movement forms are a different type of thing internally. Totally slipped my mind to check when I was doing work there a while back for adding the generic ability. Should be pretty straightforward, we'll just have to do some investigation when we get a chance.