Форум поддержки Thunderbird

Hi there! I made a screen-shot just in case I don't explain this well :) In my inboxes this works well on both my emails - the "groups" 'today, yesterday, last 7, last 14 & older' are all expanded all the time. (see image)

This is however not the case in other folders like sent, junk, deleted etc. I need to manually click the name "today/yesterday etc." to expand it. Next time I go to that folder again, they are all 'un-expanded/closed/collapsed' again.

I would like them to be expanded as default all-the-time in every folder I have! Is there a setting for this somewhere that I can set to 'true' or just check a box?

I know where my emails for my three accounts are, but can't see them in Thunderbird anymore since downloading some gmails. Also my Thunderbird user interface changed some months ago and doesn't look like what I see online in instructions for doing things.

I used Thunderbird for years with my account A, recently added account B. Now messages arriving at account A are quickly moved within seconds into trash for account B. What have I done wrong? Help