[Hansrutger]

Your second sscanf is the issue or well both of them kind of are. First you are asking to put "params" into "options" and it should basically be a 1 or a 2. Then when it's a 1, you're asking again if params (aka also options) to be placed into chatstyle. Ergo you have the same thing being placed in both "options" and "chatstyle". You could make the code a bit simpler by using it like this for example:

Code:

CMD:setstyle(playerid, params[]) 
{ 
    new options, style; 

    if(sscanf(params, "ii", options, style)) { 
        SendClientMessage(playerid, ADM, "USAGE:{FFFFFF} /setstyle [Options] [StyleID]"); 
        SendClientMessage(playerid, DARKGREEN, "1. Chat Style|2. Walk Style");  
        return 1; 
    } 

    switch(options) 
    { 
        case 1: 
        { 
            if(chatstyle < 0 || chatstyle > 7) 
                return SendClientMessage(playerid, DARKGREEN, "That chatstyle does not exist."); 

            PlayerData[playerid][ChatStyle] = chatstyle; 
            SendClientMessage(playerid, YELLOW, "Your chatstyle has been updated. Chat styles are played when you type."); 
        } 
    } 
    return 1; 
}

CMD:setstyle(playerid, params[]) 
{ 
    new options, style; 

    if(sscanf(params, "iI(-1)", options, style)) { 
        SendClientMessage(playerid, ADM, "USAGE:{FFFFFF} /setstyle [Options] [StyleID]"); 
        SendClientMessage(playerid, DARKGREEN, "1. Chat Style|2. Walk Style");  
        return 1; 
    } 

    switch(options) 
    { 
        case 1: 
        {
	    if(style == -1) // this means that the user never placed any style id as parameter
	    {
                SendClientMessage(playerid, DARKGREEN, "USAGE: /setstyle 1 [StyleID 0-7]"); 
                return 1; 
            } 
			
            if(chatstyle < 0 || chatstyle > 7) 
                return SendClientMessage(playerid, DARKGREEN, "That chatstyle does not exist."); 

            PlayerData[playerid][ChatStyle] = chatstyle; 
            SendClientMessage(playerid, YELLOW, "Your chatstyle has been updated. Chat styles are played when you type."); 
        } 
    } 
    return 1; 
}

Also indendation lost you somewhere, get the practice to use it correctly please!

My question: Is it possible to make this code shorter somehow? Just asking for convenience sake of course (ZCMD).

Code:

CMD:wi(playerid, params[]) return cmd_windows(playerid, params);
CMD:win(playerid, params[]) return cmd_windows(playerid, params);
CMD:wind(playerid, params[]) return cmd_windows(playerid, params);
CMD:windo(playerid, params[]) return cmd_windows(playerid, params);
CMD:window(playerid, params[]) return cmd_windows(playerid, params);
CMD:windows(playerid, params[])
{
	return 1;
}