Custom date formatting and default management
1) the ability to create custom date formats, for example Aug-18 (mmm-yy)
2) the ability to manage "default start dates" for calendars without having to create custom tables. Our financial year starts in July. This means that when doing a month on month comparison with a previous financial year the calendar starts in January so the new FY numbers only start populating from the middle of the visual in July.
It also means the we need to manually set up reference tables for things like quarters because our Q1 is shown as Q3 according to the standard PBI format.