How to use squad mates skills on the PC version?
For the life of me, I have yet to see any of my squad mates use their biotic or tech powers. This is in ME1. Mind you, I have played the original versions of all 4 Mass Effect games. I did at least see Liara occasionally use her biotic skills in those. But so far, in the Legendary version of ME1, it just ain't happening.
FYI, I have changed the default setting for squad AI fro "Defensive" to "Feel free to always use them".
I allow my teammates to use powers as they please but usually activate them using the power screen, ie push space and bring up the "weapon wheel" choose a power from them to use and watch them use it. I haven't played ME3 yet, but have played 4 times through ME1 and on a 5th, a partial on ME2 and a full run on ME2. Now in ME1, the do use powers pretty much whenever I tell them too, when I have an enemy highlighted. In ME2, I find that 90% of the time they use powers when asked too, but will sometimes glitch out and NOT use a power, which is highly annoying, but they do mostly use powers. I have seen them use powers on their own, but I generally am directing them to use powers almost as fast as they come available in ME2, while ME1 it 50-50 with them using powers when asked or on their own.