MAC desktop App for proton mail version 1.12.1

Current behaviour
When a conversation is open pressing the keyboard shortcut 'A' archives a single message from that conversation.
When a conversation is open pressing the toolbar archive button archives the entire conversation.
The tooltip on the toolbar archive button shows the Letter A as the shortcut.

Desired functionality
Make a clear distinction between the two functions of archiving an entire conversation vs a single message.

Suggested solution
Add SHIFT-A as a shortcut to archive entire conversation.