From the "Room Items" menu, Custom Item(s) can be saved to the user's "Uncategorized" My Catalog.
The Procedure
1.
Enter the name of the Custom Item(s)
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2.
Click the "Take Thumbnail Image" button
3.
Adjust the cropping area of the Thumbnail Image and click the "Crop the Image and Save" button
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4.
Confirm that Custom Item(s) are saved in "Uncategorized" My Catalog
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