Link a media to a parent (page, article) is done with the button "Add media"
To be linked to a parent, the media must be already uploaded to the server and be available in the File Manager of Ionize.
To link a media, just click on "Add media" and select the wished file : this file wil be added to the currently edited parent.
The meida list will be visible in the tab correponding to its type (Pictures, Videos, Music, Files).
In case of linking a picture, thhumbs will be generated just after the link action.
"Add media" opens the File Manager window.