UnResearching....

Is their anyway to unresearch a upgrade once its been researched?

I have already tried the Player Set Current research level to 0 for bla bla upgrade but that didn't do anything.

There is a way to remove an ability, but it's permanent.

Its not an ability though, it is an Upgrade.

You see, I'm trying to create a range extender by using the Long rifles upgrade, however when lets say the weapon changes from a bow to a sword I want to take away that upgrade so his range will be reduced to close combat. The Upgrade works just like its planned but the Upgrade when I change the number from 1 to 0 won't go away it stays upgraded.

Well, I guess u could try just replacing the units when Sword gets reaserched or just replace the barracks with like sword barracks or somthing