Hi,
I have setup a group using the UI. Inside a have a single_image with the ID _thumbnail_id, it does not show in the admin column, I have read the MB admin columns, does not support displaying anything from a group.
Here my question, is there a way to show the _thumbnail_id on the admin page ? for example wouldn't it be possible to setup another single_image field outside the group (it has to be read_only then) , that will 'hold' the value of the _thumbnail_id field ?
If yes how can I do this in the UI ?