Can this be done on the PC version? FYI, I tried searching for this, but got no results. Thanks in advance for any help.

Since you said "PC version" I'll assume you're talking about Crysis 2. I'm pretty sure they scrapped the quick menu and the suit modes are hotkeyed by default.

Actually, I'm talking about Crysis 1. The walkthrough on GameStop advises to assign the modes of the nanosuit to hotkeys, but I don't see where it says how to do this. (And I'm just now getting around to a serious playthrough of Crysis because I took a heavy interest in RPGs for a few years.)

Crysis 1?
turn hotkeys in menu on
double ctrg = cloke
double shift = speed
double T (meele) = strength

XD
my english skills are bad

y know that many of my friends use hotkeys for suit modes in CW and i think you just need to go to the keyboard options, though i cant remember if it is equal in C1

Do not want broken system from Crysis 1, hotkeys must be good to use. 6v6, little maps, hotkeys - more internsive and spectacular gameplay. IMHO.

Crysis 1 Quick Suit modes where

2 times jump for strength jump
2 times melee hit for strength melee hit
2 times spring for Speed mode
2 times back key for armor mode
2 times crouch/prone for cloak