It would be great to have keyboard navigation support in the folder structure. A possible implementation could follow the logic of Finder/Explorer or tools that use Cmd + K navigation.
Suggested controls:
– Arrow keys – Navigate through items
– Enter – Open the selected email
– Cmd + Left Arrow – Go back (alternative: Esc)
– Space – Select an item
– Shift + Arrow keys – Select multiple items while navigating
– UPD: Almost forgot a useful hotkey:
Cmd+K – search
This would significantly improve the workflow for users who prefer keyboard shortcuts over clicking through folders manually.