Hello,
Since old Topic Products didnt migrate to new ones automatically in my Version of ATContentTypes, I just erased them and made new ones, since they are only four of them, please have a look if I did them right.
Changing Creator and Owner is not supported by Plone as Standard, (since one should never change a creator and ownership could be shared and take ownership is available under ZMI), but since it could happen because of migration problems I have added an function for that.
see https://puredata.info/dev/pd_webwiki/ChangeCreatorAndOrOwner (for manager)
please I dont know who should be owner of these. Since we have now groupfolders we can make a group webadmins, were we are added and we can make a reviewers for the site as group.
mfg Winfried