Take this one I made as example:
- script Setcell#func -1,{
OnInit:
setcell "dellar",96,119,107,102,cell_novending,1;
setcell "dellar",76,103,121,34,cell_novending,1;
setcell "dellar",54,95,132,32,cell_novending,1;
setcell "dellar",145,97,76,34,cell_novending,1;
setcell "dellar",144,150,120,102,cell_novending,1;
setcell "dellar",62,149,84,101,cell_novending,1;
setcell "dellar",88,126,96,118,cell_novending,1;
setcell "dellar",112,126,119,117,cell_novending,1;
end;
}
This disables vending across the map except for the red zones: