How to get kerbals out of Mobile Processing Lab MPL-LG-2?

I have a space station on Duna orbit, equipped with Mobile Processing Lab MPL-LG-2. I plan to decommission it and bring my kerbals back (or move them to the new station). But I have no idea how to make them go EVA. Only pilots are listed in the right down corner of my screen (one for station, 2 for rescue vehicles). Is there any way to do it, without hacking saves or using Crew Manifest?

If you left click on the hatch, it'll bring up a list of occupants with an EVA button next to each of their names. Then it's just a simple matter of flying them to wherever they need to be. This is the same process that you use for the stock hitchhiker pod as well.