I am playing a low Charisma character, but I really want the Intimidation perk. I know you can train your S.P.E.C.I.A.L. stats up, and that there's certain items such as the SPECIAL book, and Bobbleheads which give permanent stat buffs, but what if I get a temporary level 10 Charisma through clothing and chems etc?
Would I be able to gain access to the full Charisma tree when levelling up?
Secondary related question: When you do level up, do you HAVE to allocate a point immediately? Or can you exit out, pop a Mentat, then go back in and choose a perk?