I installed the ItemCopy module in Omeka S so as to duplicate items easily. However, nothing happens while selecting the relevant items and clicking on the “+” button next to them.
Did you do the following manipulation, as mentioned in the project README.md?
A few parameters need to be customized directly in the asset/item-copy.js file (starting lines of the file)
The key_identity and key_credential parameters : to perform a GET operation on a non-public resource or/and a POST operation to create a new resource, the API requests must be authentified with key_identity and key_credantial parameters. These 2 parameters are given for admin user by activating an API Key in the API keys tab of their user edit page.
If so, there also seems to be a issue with recent versions of Omeka S.
After following manipulation indicated in the README.md, it finally worked! But I needed assistance to do that, as it requires a few informatic skills.
Interesting to learn about ItemDuplicator. Does it copy images along with items?