[plugin or feature request or css wizardry? I suggest just keeping one category and then the developers can add an appropriate tag: plugin etc.]
This is more a UI request. It should be possible to move a (selected) block of text from any visible note to any other visible note. Currently just editable to editable pane.
Here is something related: If you drag and drop a block of data on a folder in the file explorer view, it replaces the original text with an
]] link, and create new file unique-name in the current folder! The user can then change the name, just like they currently can when they create a new file (in a folder or the vault root). Probably this should be a separate post?