k, i can help with that... loading... loading... does anybody else take forever to load map editor? maybe its all the maps and music i have, maybe its that kotor and warcraft on installed on my pc... maybe not... any way... loading...
you go advanced (at top of screen in map editor) gameplay constants, hero maximum level x
in your case, x shold be set at 5, change it to whatever you want the max level to be. then the hero should be able to level up to that level... later.