Thank you cHud, that's a giant step in the right direction.
However what is happening is the timer stops at it's inicial present value even if I add to it.
Idea would be by pressing (inserting coin) present rises from 1250 to 250 and timer stops at 1500.
Also after timer stops, the Present value needs to go back to it's original value, so I'm going to try to add a reset number to it.
Will work on it all tonight but if anyone can help out, would be great
The purpose of this is a self service car wash, when you insert the first coin it gives a x time, when you insert a second and third coin I need to add the timer (Y+(X-Z)
X - Time given by first Coin
Y - Time Given by second coin
Z - Whatever time has passed beetween First and second coin
Thank you