After creating a Custom Component Group (with a default name) in the Beast Core 6 Search application, rename your new group via its editable textbox in the 3D Viewer Settings → Groups menu → Custom Groups section.
Create a Custom Component Group in the Search App
See the Create a Custom Component Group article for more information.
Rename Your Custom Component Group
Access the 3D Viewer Settings plugin via the left-hand content pane’s drop-down menu
Or, by selecting the far-left cogwheel
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Locate your default Custom Component Group name in the Unloaded → Custom Groups section on the (default) Groups menu.
In the editable textbox, rename your Custom Component Group using a unique name that is easy to identify.