How to add content to a custom textbox widget
Ensure that your dashboard is in "Edit" mode.
Then click on the ellipsis "..." at the top right hand of the widget and select Edit.
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 ellipsis "..." icon and select "Done Editing" to save your changes when finished.