Expanded planner list view
You can use the expanded list view when working with planner lists. This view can be enabled in the menu that opens when you click the three dots:
You can control the column display by clicking the gear icon:
After you have saved your settings, this list will always open with the columns you specify. This gives you the ability to switch to the expanded view of a given list while working in a planner so that you can filter tasks or contacts using quick filters, carry out bulk operations on them, and more.