You can use dataview to do rollups, several levels deep.
Example:
```dataview
table start-date, end-date, quarters, quarters.months.weeks.start-date
from #years
sort date asc
In my pages tagged #years I have a list of related quarters in link format:
Likewise, in my quarters pages I have a list of linked months:
And so on. The above query will produce a column that has all the start dates of all the weeks that are related to the months that are related to the quarters that are related to the year for that row.
Small example:
This isn’t maybe the most useful example, but I wanted to show a few levels of depth. Anyone familiar with rollups knows this opens up some really cool stuff, especially for reviews and such!