Can I make links open in a new tab?

Yes by editing the hyperlink in the HTML code view.

In order for linked documents to open in a new tab when the user clicks on them, please follow these steps:

You can make this change by editing your hyperlinks in the html code view and input target=“_blank” as an attribute.

To edit in Code View: click on the "Code View"
 An example of a hyperlink with this attribute is:
<a href="" target="_blank">Here is my link text</a>
When finished, you must click the Code View button again to exit Code View, and then you may click save.