Guitar Scientist: The Most Powerful Guitar Diagrams Editor Online

Tools panel

The last row of icons of the tools panel lets you add elements to the document. You can add three types of elements.

Add fretboards

Click on this icon and a new empty fretboard will appear on the document.

Add text box

Click on this icon and a new empty text field will appear on the document.

Add youtube video

To add a youtube video you need to paste the link to the video into the text field and click on the button.
If you pasted a valid youtube link your video will appear in the document. Only one video per document is allowed.