[Nirzor]

first you need to make some variables

suppose

new mechanic[MAX_PLAYERS];

then in onplayerconnect give

mechanic[playerid] = 0;

then on the cmd CMD:Fix ifisplayerinrangeofpoint(cords) then mechanic[playerid] = 1;

and on /acceptm i placed m for mechanic then GetPlayerName those things variables and if (mechanic[playerid] == 1)

then set the vehicle by targeting with the sscanf tool and your done with your system