[Feature] Hot keys not implemented

How does the problem look like?

I know it might be difficult to implement hot keys, but one VERY USEFUL feature that heroes 3 had was the space bar hotkey which re-triggered the visited building on adventure map.

This was very useful for Monolith Portals when you could get on the other side and if there was a powerful creature, you could return by pressing space bar.

What exactly did you do to trigger it?

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On which map it happened?

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A screenshot or video would be fantastic.

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