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In contrast to Charview, FontView and MetricsView there are not hotkeys available in BitmapView (for no obvious reason). After tracking down some of the past PRs, I found that #3637 implemented hotkeys for BitmapView. @skef tried to revive the PR in #3638.
Charview, FontView and MetricsView seem to have gotten a menu overhaul, but BitmapView was left out for some reason (still old inline hotkey definition and no definitions in share/default).

I would love to see hotkeys in BitmapView. Let me know if there are any workarounds or any help that is needed to make this happen. (I have not fully understood how the current hotkey system works)