Q&A 2
https://robertsspaceindustries.com/comm-link/transmission/15614-Esperia-Prowler-Q-A-Part-2

answers a few boarding questions

Can the grav levs be reversed and attach the ship like a magnet to the hulls of other ships.

We are still developing the systems needed for ship boarding, but the intent is to have the Prowler as a key boarding ship. This will likely use a variation of what you have described above, but we do not want to promise exact details until the boarding system is finished.

Does the Prowler have any docking capabilities?

If you mean ship-to-ship docking, no. That kind of boarding approach is not in line with Tevarin practice, which much preferred their airshielded Deployment Portals and elite training to optimize their effectiveness. Installing a physical docking hatch compatible with human standards of the time was not deemed a good use of the ship’s mass or internal volume budget. As per their philosophy, Esperia decided not to alter or diminish their Prowler’s experience and design choices by compromising other features in order to install a contemporary docking hatch.

This is more of a physics question. With the Prowler being able to sneak up on large ships to deploy EVA troops, are there plans to allow crew members who exit a ship to retain their velocity? With the current unrealistic system of slowing down to a standstill after jumping into a friction-less vacuum, I feel it’ll be near impossible to board unless the captain of the ship is AFK.

We spoke with John Pritchett who said the EVA friction is a bug. We do plan to address this bug at some point. Of course, even if you retain velocity upon exiting a ship, that by itself doesn’t necessarily make boarding another ship at speed easy, either. We’re as interested as you are in seeing just how good you can get at it – and under what conditions.