Ribbon Gallery Designer
The Ribbon gallery designer is a design-time tool which helps you manage gallery contents: create/remove gallery groups and gallery items, and quickly exchange items between different groups.
To open the gallery designer‘s window, click the ellipsis button next to the gallery item’s GalleryCategories property in the Object Inspector.
You can select multiple items and/or groups in the gallery designer while holding down the Ctrl or Shift key. In addition, you can copy selected items/groups by dragging and dropping while holding down the Ctrl key.
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