Triggered Cooldowns

Is there a way to trigger how long a cooldown lasts and, if not, possible to make a cooldown go off when it's not activated?

A dummy spell you replace the main one with, replaced again on a timer.

Ex:

Hide spell A on yourUnit.
Give yourUnit spell B.
Order yourUnit to cast spell B.
Reorder yourUnit's last order.
Run a timer to readd spell A and remove spell B when spell B finishes cooling down.

Well that's not neccessarily using cooldowns and wont show the timer, exactly... but I guess it would serve the correct purpose. Thanks for the input, PurplePoot.

It's not great, but it's the best you can do (With showing the cooldown circle, that is. Without it, it's dead easy).

Don't greenify your text...

Albeit going off-topic, I'd like to ask: why?

It's impossible to read in some forum styles.