Can you upgrade this upgrade in game by giving a player without this upgraded a unit with this upgraded, such as a high templar?

Given units don't retain their original player's upgrades, if that's what you mean. Your wording is slightly hard to understand.

Impeached, giving a unit that has a certain tech will give the player that the unit is given to that tech, so it is a reasonable question. But no, since 60 is an upgrade, not tech, it is not passed.

Unused upgrade 60 is... UNSUSED. YOU CANT UPGRADE WITH IT!!!

Yeah you can. It upgrades things like buildings and spells.

But this isnt modding, so unused variables don't apply right?

For example, the valkyrie's afterburners reflect in modding, but serve no purpose in Unitary Standard Mapping (or UMS)
Yes I made up a messed up version of UMS, deal with it.

Well, if you preset upgrade 60, it does affect stuff in a normal game.

Setting unused upgrade 60 when making the map will affect unit damage and armor. For most of the units, it doesn't do anything. However, it upgrades Psi-storm damage, sunken, spore colony damage, photon cannon damage, builder damage, missile turret damage... Does a lot.

OMG I COULD USE THIS IN MAPS... Actually, I'm creating a map-making tutorial and a how-to-play-SC tutorial for my friend, so this would be extremely useful stuff. Could anyone tell me where to locate Unused-Upgrade 60?

Cool, I never knew thats where you upgraded those. Hmmmmmm...sad though that you cant attach it to a building and make it work like if you were modding

SCM Draft or StarForge has it, StarForge has it labeled though in Upgrades.

On scmdraft, under upgrades, and other, its the last unused upgrade.

Since we're talking about it anyway, does anyone know if upgrade 60 increases the damage plague does per pulse?

No it doesn't.

Enjoy. All the info you could ever need on that upgrade.

ooo. didn't know it could be used on spidermines.

Wow, its [=CS Announcer=] GODLIKE