[HarlemSAMP]

If you want to just make a cmd or a text using IsPlayerInRangeOfPoint, yes you can set up the coords where you want the cmd to be working, maybe like /help, if it's not what you're asking be more descriptive.

EDIT: not sure if you asking for a example of IsPlayerInRangeOfPoint, but here an example:

pawn Код:

CMD:help(playerid, params[])
{
    if(IsPlayerInRangeOfPoint(playerid, x y z)
    ShowPlayerDialog(playerid, yourdialogid, DIALOG_STYLE_LIST, "Help Menu", "BlahBla", "Ok", "Cancel";)
    GivePlayerPenis(playerid, blowjob);
    return 1;
}