I occasionally like to try out a quest solo (melee with hireling, so not exactly solo) so I can take my time and figure it out. I'm wondering though, if Schemes of the enemy is soloable. From the wiki it sounds like you can drop the force field in 2 ways - brute force or solve the puzzle. The brute force method requires spellcasting or ranging as you cannot get close to the power relays to beat on them. The puzzle method seems to require 2 people - I tried getting my hireling to pull the upper wheel while I was at the lower, but lost focus each time.
Has anyone done this? Is there a secret to keeping focus on an object far away while interacting with one close by? I know I have done something similar in Delera's and one of the Necro 3 quests.