Removing Expiration Timers

Is it possible to remove expiration timers added to units through triggers? Right now I'm using a workaround by replacing the unit with an identical one, but carrying over all the possible orders from the original unit to the replacing unit is proving to be a pain in the ass, especially since I can't get the game to sense when a unit is ordered to build. Any ideas?

Erhm, that codeline removes/kills the unit. :O

I need to unit alive. :/

Then don't use an expiration timer, use a regular timer that kills the unit after a certain amount of time, and if you need to "save" the unit just pause that timer.

If you really need the bar, you could make the unit a hero and use the Experience bar to act as an expiration timer.

I don't need the bar, I just preferred the expiration timer because its a lot simpler and requires less triggering. If it isn't possible to remove it, then yes I will use a different method.