Can I not set Opus 12 lite to be my default file explorer?

I just paid for a copy of Opus lite... But when I tried to find out how to make it my default file explorer... I discovered that the help files were directing me to a preferences category that doesn't exist for me. (Launching Opus)

Can I not set Opus to be my default with the lite version? This would seem to be a pretty basic feature, and one the devs might want me to be able to set. I am really just trying out Opus for this first time... it's not like I am even in the habit of using it yet... So having the default windows explorer pop up in many situations isn't helping with my transition.

Only in the Pro version. Light vs Pro