Commands:
Document > Delete Paragraphs
Paragraph > Focus
Paragraph > Unfocus
View > Zoom > Zoom In
View > Zoom > Zoom Out
View > Zoom > Actual Size
A Page gives access to the contents of a page. Paragraphs and sub-paragraphs can be created, displayed, edited and deleted.
Paragraphs can be moved by click-drag onto their arrow

Command-clicking onto the arrow

Using the command Document > Delete Paragraphs deletes the selected paragraphs. Deletion is undoable.
The command Paragraph > Focus focusses the display on the currently selected paragraph. The command Paragraph > Unfocus displays again the entire page.
The commands View > Zoom > Zoom In, > Zoom Out, > Actual Size change the display size of the entire document content.