Increasing values past Object Editor value limits

[Bribe]

I have analyzed the "Blizzard TD" map to learn how they crafted the "Death Aura". I am trying to create a very similar spell, however their map's values range from 15-40 from a customized "unholy aura". However, when I try to customize my own "unholy aura" I cannot input a value greater than 10.

Does anyone know of a way to bypass this?

 

[MortAr]

Hold shift, then double click the value, release the shift button and add whatever value you want.

 

[-Berz-]

Hold shift, then double click the value, release the shift button and add whatever value you want.

Seconded