How put negative numbers in aura's effects?

[Severalser]

I'm trying put negative numbers in the aura's effects, ex:
Devotion aura remove -5 armor from enemies units.
Now, when I write -x number this automatly are chaged to 0, so I don't know how is
the problem.
Someone can help me please?

 

[IcemanBo]

Try with shift + enter instead of just enter. (when you select the field where to change value)

 

[BloodDrunk]

Yes, use Shift+Enter, it'll work.
Also, you can allow negative values in map preferences (I think it's there)

 

[Severalser]

Ok, thanks