How do I insert negative numbers into the data

[r.ace613]

I wanted to make a spell that is the opposite of devotion aura, which decreases the armor of enemy units, but I can't seem to insert negative numbers(It always return to 0 when I do), I have seen some other maps that actually are able to use negative number?

 

[IcemanBo]

Try pressing shift button, then double click on the field, and then enter the wanted value.

 

[r.ace613]

Try pressing shift buttot, then double click on the field, and then enter the wanted value.

It worked! Thanks dude