If you want to find out what an anchor is and how to create one, click here.
*Also, if you have not done so, please feel free to review this tutorial on how to add a basic link before proceeding.*
STEP 1: Select Link to anchor in the text from the Link Type drop down. Then, select the name of the anchor in the By Anchor Name drop down. Finally, hit OK.
STEP 2: Once you've added the link, hit Publish at the top right corner.
For a video tutorial on how to add in various links, click here.
If you wanted to link a YouTube video to your website, click here.
If you have any more questions, feel free to submit a support request here.