Yes. To compare today's figures against a previous quarter, there must be a saved report for that quarter. If you have not created a report for the period, you can only compare against a date. So create a report at every quarter end, or every month, to «lock» the period.
How to do it
Update the forecasts before the quarter end: change orders, expected additions, uncertainty and degree of completion.
Go to Report and click + Report.
Give the report a name, for example «Q3 2026».
Select the Posting period up to and including the last month of the quarter.
Save.
Next quarter, create a new report and compare it against the previous one.
Forgot to create the report?
You can create a report for a point in the past by setting the forecast date to the quarter end.
Tips
Create a separate table profile for reporting with only the columns that matter when you look back in time. Not all columns are equally relevant in a report.