I can't understand:
Can I re-visit old floors of Tower? I try to re-visit, select drag-n-drop heroes bur "battle" button is disable. And I acn't start the battle and I can't go back to Town!
It sounds like you are in the middle of the Hero Swapping tutorial. You need to place a Hero in the "back row" of Heroes. There's a set of smaller spotlights to the left and behind the main row. Hopefully that gets you through your issue.
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It sounds like you are in the middle of the Hero Swapping tutorial. You need to place a Hero in the "back row" of Heroes. There's a set of smaller spotlights to the left and behind the main row. Hopefully that gets you through your issue.