Understanding blocks, editing, and customizing to your preference.
Your document is made up of elements and different types of blocks to organize your information.

To edit your block, click on the 3 dots left of it, or double-click & highlight.

When clicking on the 3 dots to the left:
Move block to another object, duplicate, delete, turn into object, clear style.
If text, edit style, align, color, & background.
When double-clicking or highlighting your text:
Plain text editing options are; bold, italic, strikethrough, underline, code, color, & background.
When you select the Aa on the left, you have these options to change the element to this.
If you click the 3 dots on the right, you have these options to edit your object.