ESP script

I have a real big menu that someone made for me and i think this is it. Sorry I dont really know much about it or how menus work.

if (isNil "playericons") then {playericons = true;} else {playericons = !playericons};
if(playericons) then {titleText ["ESP ON!","PLAIN DOWN"]; titleFadeOut 4;};
setGroupIconsVisible [false,true];
while {playericons} do {
_i = 0;
_j = count allUnits;

for "_i" from 0 to _j do
{
_unit = allUnits select _i;
if (alive _unit && player != _unit) then{
_group = group _unit;
_group addGroupIcon ["b_inf", [0,0]];
_group setGroupIconParams [[0,0,1,1],format ["%1 - %2m", name _unit, ceil (_unit distance player)],0.8,true];
};
};
sleep 1;
_i = 0;
_j = count allUnits;
for "_i" from 0 to _j do
{
_unit = allUnits select _i;
_group = group _unit;
clearGroupIcons _group;
};
};

titleText ["ESP OFF!","PLAIN DOWN"]; titleFadeOut 4;};

Next time wrap it around code text.

How do i do that? Still learning