When you open the image details dialog for the first time, you will be presented with many input fields. Those fields are organized in tab sheets. The fields are based on the XMP standards, which in turn is derived from the IPTC (http://www.iptc.org) and EXIF industrial standards for photographic information. Because IDimager is fully XMP aware, it uses the XMP variant of IPTC called IPTC4XMP.
By default, the image details dialog (also referred to as the image details editor) displays most of the commonly used IPTC and EXIF-based XMP fields. However, it is possible to customize the image details editor to display only the fields that you need, to add different XMP fields, or evento extend the editor with fields currently unavailable in IDimager. In this way, IDimager allows you to fully benefit from the power of XMP.
Open the editor by clicking the Editor Schema button in the image properties dialog.
Inside this editor you can define the tabs you want to use in the Image Details, organize how fields are displayed within the tabs, add new fields to the editor and more. The Editor has orange balls at the top of the panel; each orange ball represents the name of a specific tab of the Image Details panel (see the red arrows in the illustration below) as well as a group of fields associated with that tab (see the green arrows in the illustration below).
When you click on an orange ball icon in the Editor, the group's title (in the illustration below "Descriptions") is displayed just below the orange balls. In addition, the Editor displays the fields associated with that group in "XMP form", meaning that each field in the list is identified by its XMP property name.
You can rename a group by pressing [F2], or by clicking the drop down icon located on the upper right side of the Editor dialog and selecting "Rename meta group".
The order of the fields in the Editor list is also the order in which they appear in the tab of the Image Details. You can change the ordering of the fields by dragging a specific field to a new location and then dropping it.
If you want to remove a field (or fields) from the list, select the fields, right click on the XMP property label to bring up a context menu, and then select “Delete Item”. You can also delete fields by first selecting them and then clicking on the <delete> button in the mini-toolbar.
Fields can also be moved to a different group. To do this, select the field (or fields) to move, right click, and then choose “Move To Group | <<Group name>>”.
Finally to create a new group, click the drop down menu indicator in the right hand upper corner and select “New Group”.
Once you have customized your editing schema, click the OK button to close the meta editor. This will both update the Image Details design and return you to the Image Details panel.
For more information, please read the forum topic http://forum.idimager.com/viewtopic.php?t=430.