[Trigger] Unit is training condition

[Mechanical Man]

Is there a way how to check if a unit is training a unit? There doesn't seem to be such a condition in triggers.

 

[Element of Water]

You could detect when a unit begins training a unit, then set a boolean to true, and set that to false when a unit finishes training a unit, or a unit cancels training a unit. It'd be hard to make this GUI MUI without hashtables, however.