The following are the top four custom views in SharePoint Online:
- Grouped View: This view allows one to group items in the way preferred. One can choose up to 2 columns and group information by those properties. If used in a document library, the Group By feature is a good way to mimic a folder experience.
- Default View: This view allows one to decide what view should be shown when one opens a library or list.
- Landing Page: This view allows one to see all the views when they click on the library link.
- Totals: This view allows one to calculate a column.
