Sort group not only nodes
Explain the problem as you see it
Every week, I review my Daily prep nodes. It is natural for me to want them to group them by week. First problem, grouping is only available on the list view (but that has already been discussed in this feature request). More urgently, I want to sort groups with most recent weeks on top. When I apply groups by week, currently they're shown oldest to recent and I have no way to change that.
Why is this a problem for you?
If I use groups by weeks and I need to check last week's activity (i.e. the most recent), I have to scroll all the way down to the last group. This becomes untenable if I add more and more Daily prep nodes
Suggest a solution
Under display options -> Group -> By week, add a little selector saying "Sort groups:" -> Ascending / Descending. This is different from the sort fields that currently sorts nodes within groups (and works well at that!)