Negative # on Object editor?

I tried everything but I dont know how...

How do I make negative Numbers on Object editor... I tried to make a aura where it decreases armor but the editor won't let ma numbers go down less than a 0.... HELP ME WAHHHH

I will really appreciate it...
-Dark_Moonrider

you have to have negative values turned on, file preferences... you should really do a search before asking questions people have already asked a thousand times...

RMAO LOL

I didnt know That and I created maps for 2 years... Sad...

Note that that will only allow you to input negative REAL (decimal) values, not Integers