"HW rulez" mod (add-on) for HoMM3.

there are no additional settings before generating a map in the editor.
mapmakers don't appear on random maps anyway. the hill forts have been modified and can now be visited. obelisks have no guards, and the Grail can be dug up starting from level 111.
if the archive is unpacked correctly, the mirrored templates should appear in the list of templates. they are called h3dm1, mt_Diamond, and mt_Skirmish.