How to change gold to another name?

[UniXistent]

Hello,
Was wondering how you can change the icon for gold and the name for gold itself to something else? ie: I want to change gold to "knowledge" and a gold mine into an Ancient Temple.

Also, was curious if you can give regular units the ability to gain levels? Thanks =)

 

[XXXconanXXX]

Go to Advanced>Game Interface and change the name, icon and text for gold to what you want. ALso go to your object editor and look under nuetral passive, buildings and change the model file for the gold mine to an arcane tower or whatev er you want. You don't change units to heroesd, you change heroes to units. Make a new hero and change it's soun, modpel file, and icon to a unit.