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I think it will be even more difficult after the second look ;). Guys from Hugo's Corner wrote a lot of complaints about this editor: that the default battles don't work, that heroes can't be renamed, and that you can even get banned on Ubisoft for using weapons from the Dynasty. But maybe it's not that bad :). I will only study the editor in detail after completing the campaign and developing all the weapons from the Dynasty in HotS.
Good luck :)!