I lost the tray at the bottom of my screen - how do I get it back?

Hi skomer,

I'm afraid, I'm not sure what you mean by tray at the bottom of your screen. Do you possibly have a screenshot of how it look like?

i think you're talking about the toolbar. It might be visible if you update zen. Actually, i was also facing the same problem but when i update, it got resolved. they might've added this in updated version.