V6.4 how to fetch mail in all folders, in just a few clicks?

First, i have V6.4
and I have the setting
Poll folders: Only 1st Class folders

In the previous version:
I see the inbox by default. When I wipe down, only the inbox is synced.
No to the problem. To sync all folders manually, I press the icon with three dots in the top right corner, then something like “show all folders”, and then I can wipe down and in all folders the emails will be synced.

In V6.4:
I press the icon with the three lines and see all folders in a box on the left, when i now wipe down only the inbox (1st class folder) is synced.

I’m too stupid, or has this option been removed?

thx for your reply