Question

Is there an action that stops the progress of any units being built, like a cancel order or something. I want to be able to cancel a hero revive in progress with triggers.

You might be able to issue a string order "cancel" or something.

My trick way would be to select the building and force a UI key that cancels it.

For UI key is the only way that I know, force UI key ESC.

Giveing the unit a stop order doesn't work, and there is no cancel order (unless i missed it.)

Or you could replace the altar with a brand new one really fast. Then, the resurecting would stop.

That's a good idea IMO.

Oh yea, cause you could replace it with the exact same unit type, ya nice idea.