This is a super easy ask. The ‘T’ key is currently unassigned as a keyboard shortcut. Please assign it to View > Top. I know for me (and I imagine for many users) the Top view is a critical view when trying to locate unsupported “islands” stepping through layers.
When I do find those islands, I must edit supports. After applying the support edits, I’m always in some funky perspective and it’s essential to re-engage the Top view to identify other islands. It’s a pretty routine set of events. Currently, this requires mousing to the top menu and selecting View > Top, but it could be accomplished in a keystroke.