In Proton Mail's web application, I would like to go easily to a particular folder. Convenient ways would be:
- A 'Go to Folder...' shortcut (much like the very useful 'M' shortcut to move a message to a folder). 'Shift + M' is a natural candidate.
- When viewing a message listed in 'All mail', this message's folder icon appears (on the same line as the 'From' field, between the 'Star' icon and the 'time received'). Clicking on this icon currently folds the message, but it could instead offer me some actions such as 'Go to folder' or 'Move to other folder...'

I am trying to maintain a clean (i.e. empty) Inbox. So I usually view new emails in the 'All mail' section, with the 'Show: Unread' "filter" active. When I view a new email, it's usually been automatically moved by a Custom Filter to some folder, sometimes deep in the hierarchy. If I need to access that message's folder, currently the only way I know of is to click my way down that hierarchy on the left panel, which is cumbersome.