How to add content to a custom textbox widget
Ensure that your dashboard is in "Edit" mode, then click the "pencil" icon.
A WYSIWYG editor will appear, similar to the one available for the custom text box widgets in our reports editor.
From here, you can type or paste in text, format that text, add numbered/bulleted lists, images, hyperlinks, charts, and more.
Click the "check mark" icon to save your changes when finished.