Open Omnifocus perspective in a new window?

Using Shortcuts, I’m creating a shortcut that will open Omnifocus, then open a perspective (which is set up to open in a new window). However, instead of opening in a new window the perspective replaces the existing window. I use this URL to open the perspective:


Is there a modifier I should be adding to this to get it to open in its own window?

Thanks for any help.