Thank you for the fast and useful reply, I appreciate it!
What's actually my point is that 'Smart Folder' is hidden under the 'Accounts' tab, while it's not an account. I would prefer 'Smart Folder' having it's own tab at the top of the drawer, this feels more logic and efficient to me.
Currently, when I'm e.g. in the 'Sent' folder of account #4 and like to go back to 'Smart Folder: (set as 'home') first I need to click 'open drawer' then 'Accounts' then 'Smart Folder' that's quite a long way, while I'd prefer to 1 click from any location back to 'Smart Folder', as it's my main page
Perhaps this option can be set somewhere but I haven't been able to find it yet.
Best regards from the Netherlands.