If, Then Statements

How would I do a loop for changing a property, then changing it back when it reaches a goal?

repeat

until --Conditions

or

while true do
   wait(1) --Always put a wait or you will crash your studio
   if StopTheLoop == true then
      break --stops loop
   end
end

Don’t use while true do loops unless you absolutely have to (which is almost never).

while not StopTheLoop do
    print('StopTheLoop is',StopTheLoop)
    wait(1)
end