Hi Angela,
If you come across a group where all of the items are greyed out this means that the master item for the group has also been marked as a duplicate in a different group. This is possible if new items have been added to the review and the Get new duplicates function has been run multiple times. An item can end up in more than one duplicate group depending on the information contained in the reference. In this case, the user should choose a different item to be the master item.
Sometimes the entire group is greyed out. This would indicate that the master item for this group is marked as a duplicate in a different group.
The best way to deal with overlapping groups is to:
1. Select the group with the greyed out items from the list of groups on the left
2. Go to the Manual/Advanced tab and use the ‘find related groups’ function to identify the overlapping groups.
3. Among the related list of overlapping groups, there should be one group that contains all of the items found in the other related groups. This will normally be the group with the highest Group ID number (the most recently created group). You can examine the items in each group to confirm this.
4. Delete all of the other related groups. This is done by selecting the group to delete over on the left and clicking on the trash can icon (labelled Delete the current group).
5. You should now just have a single group of duplicates rather than overlapping groups.
Note that there are further details on the functionality available under the Manual / Advanced tab in the manual, along with details on resetting your duplicate information - should you want to restart the duplicate checking process again. (Please see https://eppi.ioe.ac.uk/cms/Default.aspx?tabid=2933 from page 31 onwards for further details.)
I hope that helps, but do let us know if you require further information. If you want us to look at a specific example of the issue within your review (number 13745 / CSS & Radiotherapy) do let us know. We would be quite happy to correct one particular instance of the issue for you, just to demonstrate and provide screenshots.
Kind regards,
Zak Ghouze
EPPIsupport@ioe.ac.uk