To add a textbox, click on the Global Insert menu on the top of the editor or the Elements tab on the left panel. Select textbox and click to add it to a section. Once a textbox is inserted, a blinking cursor appears allowing you to add content. The textbox auto-adjust to the amount of text added. Double click inside the textbox to make any edits.
To customize the text, use the text formatting options as described here.
Use the contextual panel on the right side to customize the textbox.
From here you can:
By default, all textboxes have the "auto-size" setting turned ON. With ‘auto size’ the size of the textbox automatically adjust to the content added. Anytime you manually re-size the textbox, it will automatically turn OFF ‘auto size’. If you want to turn it back on and make textbox automatically resize with content again, toggle "ON" auto size on the contextual panel.
With auto-size OFF, additional alignments options appear in the contextual panel.
