I am a PC gamer and I am used to moving my cursor over an item and "clicking" the item to use it. Is there a cursor in this game? if so, how can I use it?

The "e" key to use manipulate objects reminds me of Halflife and it was a PC game.

Just remap the e key to whichever mouse key you want to use. I haven't done any remapping but I'm sure its easily doable.

I wish there were a cursor, too. I'd like to be able to click stuff to get item descriptions like in the previous games. That was awesome.