Kylemark wrote:

I want to have player 1 send a input to another player 2

This is simple enough. Simply call the input() proc twice, using its first argument to refer to the relevant player (look it up in the DM Reference)

and pause both players actions untill the input is decided

This is also pretty simple. For this, you'd set a variable to indicate the player is "frozen" (so to speak), and when he tries to do actions, check that variable and disallow them if it's set to true. For stopping movement, you'd override the client/Move() proc - but this one is asked highly often, so you should search first for more information about it.

Good luck! =)