Is your feature request related to a problem? Please describe.
I always forget if I picked up my weekly mettle from "show your mettle" quest (Quest ID: 70221)

Describe the solution you'd like
Add "Show your mettle" tracking to SavedInstances

Describe alternatives you've considered
I am tracking per character with a WeakAura but I don't log in on all chars every week so it is easy to miss. Account-Wide tracking would allow em to log in when end of week comes close.

Additional context
n/a

You can create your own progress entry by tracking quest 70221.

Thanks for the input. Can you give me a hint where to add tihs?

You can add it in SI's config -> Progress -> Custom.

Thanks. For reference if someone else is looking for it: SI config > Quest Progress > User.