I think the default behavior of extend shield needs some adjustment.
If I do not select a friendly target and just click on the ability, it will currently select a friendly target close by.
But it often select items like a torpedo, or a mine, or other friendly item.
Not sure about everyone else, but I don't want to waste the ability on a torpedo.
I think at the very least it should select a player ship within range or even better the player ship most in need within range.
If I would want to extend my shield to anything else like a satellite or a AI ship, then I would select it first.