How to switch between vertical metrics (four values) and horizontal metrics (three values) in Font View

I was working in Glyphs and must have hit a keyboard shortcut. I have 4 values where perviously there were 2 (the LSB and RSB on the “home view” of a font). I have no idea what this means or how to change it back. Any help?

Screen Shot 2022-10-21 at 11.05.26 AM

You accidentally switched to Vertical Metrics. Click on the little image between the numbers to change it back to Horizontal.

What an easy fix haha. Thank you so much!