Link & Internal Link in the tool bar

Is it possible to add a Link & Internal Link button to the formatting toolbar? I did not see a way possible. If not, could this be upgraded to a suggestion for future development?

They are not available as toolbar buttons, no, but Scrivener Link is available in the context menu when you’re working in the editor, which may help. You can also drag the url icon from your browser’s address bar into the editor text to create a link to a website.