Droid Engineer Archive

K... so i had an ADV R2 chassis sitting around so I decide to stuff it with every module I can think of to see how things work. Barker, Stim dispenser, Maintenance, Food crafting and storage; along with 2 defense harnesses.

So i go to one of my harvestors with the droid out and I get a new option. Cool! So I assign it to my droid. Pull the droid out again to check my harvestors and it won't check them. Do I have to be on the same planet? How SHOULD they work since after reading some threads they aren't working.