More issues:

Sample text: “www.test.me”

Strings in “” are highlighted.

Active String:
Strings in “”: M-clicked = Select.

** Unable to select the URL in “” with M-click.

Now go on with further settings:
Style for strings in “”: Dotted Line.
Style for URLs: Dotted Line (or Underline).

Active String:
URLs: M-clicked = Select.

Now M-click the URL in “”.
** The double quotation marks are included in the selection.