[MlMt] Feature Request: add a secont Counter to folder "(2/200)"

[Michael Nietzold]

where:
- mailbox folders on left side in treeview

what i see:
- i see one counter with unread messages

what i expect:
- i like to have a  "{unread} / {all}" counter like " 2 / 200 "


Implementation

i can setup in the "display counter" context menu:
- i can select a second counter
or
- i have a checkbox "[x] add an All counter"