menu ->squad

....i think?

weird, i can even assign skill points for anderson on prologue 

make sure on combat or go medical bay on normandy , go bed nearest door to AI core , shoud u can assign skill for squadmates. On visitting u cnnt assign except for shepard only

never tried on the normandy, but normally when you take someone for mission, the squad menu will let you assign.

u set your auto-level in gameplay to off?

u are playing story mode, tat's y. if u pick action or RPG u will able to assign the skills...

AFAIK you can't lol.

You can't. I've said
RPG = Normal , typical ME1/ME2 , if you are used to ME1/ME2. Balance between action and story

Action = more pew pew pew , of course you can increase the difficulty. This is ideal for COD fans. All you just want is to kill some geth , reapers , cerberus and other junk.

Story = You don't care about pew pew , you care about the story and not the action

Have you played ME1/ME2 ? If you import your old game , you don't get it.