If you need to edit the total number of editions, you can do this within the edition management panel.
Select one of the editions from the edition you would like to edit. It doesn't mater which number.
Click View All Editions to open the edition management panel. Now click Edit No. Of Editions.
Within the grey box that appears, replace the number of editions with the new total you wish to use. For example, if you wish to increase the number of editions from 50 to 75, enter the number 75, replacing 50.
You can also edit the number of APs. If you do not enter a new number, no changes will be made.
Once you have finished, click Apply to save your changes.
Your editions will be updated to reflect the new edition number, and new artwork entries will be created containing the edition details.