My example would be something like this:

Timer
Delves
The War Within
--> Undermine
--> Weekly from Undermine
-->Siren Isle
--> Weekly from Siren Isle
--> Khaz Algar
--> Weekly from Khaz Algar

You should be able to open and close the categories.
This would make it possible to look at what is still missing in a properly organized way in order to be able to complete all Weekly.

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What I personally miss is a display for Valorstones/Crests and the Vault display of how much you still have to do to complete it. You could put this between the timer and delves so that they are always visible.