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Nothing like that) Just click the button (with glasses) "Map Properties" and limit the heroes' level there, and add at least one rumor :) As far as I understand, I installed the editor two hours ago, haha.
P.S. And the translation is poor, that's what translators are like **
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I apologize, I just checked more carefully. "Menu VIEW" (that is, the third from the left) => "Map Properties" or just press the "M" key on the English keyboard :D