The canvas is a screen that actually works in the editor. The canvas has a toolbar that makes it easy to insert text and images.

Menu Shortcut Description
Show Outline ctrl + l Show outline menu shows the area of ​​the structure or the size of the widget in lines.
Show Ruler ctrl + r

Show ruler menu is used to indicate the size and location of the widget.

When the ruler is on, detailed coordinates will appear when you move the widget, click the cursor on the ruler at the desired position, and the guideline will be created.