Fdroid differences

After confronting gmail rejection error I found out that only f-droid offers any updates for k9. After download and installation on my honor 8x many things have changed: In the old k9 we had icons at the bottom of a message displayed for SPAM and Delete.
They have disappeared, always need 2 clicks to menu and then spam or delete.
I can’t find the appropriate settings.
How to?
Regards, Clemens