How to bind rebuy in CS2
Type bind f2 rebuy in your game console, then press F2 in a buy zone to buy last round's items again as far as your money allows.
rebuy
Buys again what you bought last round, in the order set in cl_rebuy.
rebuy Examples
bind f2 rebuy Rebuy on F2.
What it does
Repurchases your previous loadout as far as your money allows. Like other buy commands it only works in a buy zone during buy time.
The game's own description: Attempt to repurchase items with the order listed in cl_rebuy
Use it in your game
Type it in your own game console: turn on the developer console in the game's settings, then press the key under Esc. To keep it, put the line in game/csgo/cfg/autoexec.cfg.
Your own
CS2 server.
From $0.03 an hour, only while it runs. New accounts get 6 free tokens.