Looks like their rolling out their own version of KAS as well, :
EVA Construction Mode
EVA Construction Mode is the main feature included in Kerbal Space Program 1.11: Some Reassembly Required. This allows Kerbal engineers to adjust many parts on a craft while on EVA.
The tools at your disposal while in this mode are similar to what you find in the VAB/SPH, such as place, rotate, and move. You can also visualize the center of mass, center of thrust, and the center of lift for a vessel. However, there are of course some limitations:
An engineer will only be able to adjust parts that are within their range, whether these are on a vessel, inside nearby storage containers, laying around in their proximity, or in their own inventory slots.
Only parts below a certain weight threshold will be able to be manipulated, but constructing in lower gravity allows a Kerbal to build bigger! Kerbals can only manipulate one part at a time and only construct with attachable parts; for example, a deployable experiment will not be able to be attached to a vehicle in this mode. Finally, some parts are just too bulky to build with and will stay right where you left them.