Add Folder Inside Rem?

At the moment, I believe that clicking “New Document” will bring up a menu to insert either “Blank Document” “Today’s Document” and “Folder.” After selecting “Folder” a new untitled folder appears in the “Draft” section. Then I have to move the folder from the Draft location to the Rem I want it.

When clicking on the “+” symbol in the Rem - it does not give me an option to add a Folder. I can only add a folder from the “new document” button and then moving to the Rem I want it.

Am I mistaken or could there be a better way to insert a Folder in a Rem?

Is it possible to make adding a Folder within the Rem easier?

Attached is a screenshot of the menu I feel the “add Folder” option should be included.

The other way is when you place, say Document A in Document B, Document B becomes a folder - essentially, a document within a document turns the parent document into a folder.

You can watch this video for better visualization.
https://knovigator.com/quest/screen-5gn3v23o