Well, for example if you have a command like /buyskin then this should be your code.
pawn Код:
cmd(buyskin, playerid, params[]) { new skinid; if(skinid == IDHERE || skinid == IDHERE || skinid == IDHERE)return SendClientMessage(playerid, -1,"The skin you have selected is for LSPD only"); //Add the skins to this line SetPlayerSkin(playerid, skinid); }