want opening tracking but not click tracking

is it possible to have opening tracking but turn click tracking off ?

what is it exactly that turns the opening tracking on? i.e. inserts the remote image used for open tracking?

Because as far as I can see, the image is only inserted when the click-through tracking box is ticked. Is that right?

If so, be very nice to separate these out. Because I want open tracking but I don't want my links in emails turned into the forwarding ones.

and also, the click-through tracking box looks like a selector, but the only thing I can select is "Automatic" ?

Just an idea .... could I grab the html for the opening tracking, and then paste that into an HTML email? And turn click tracking off haha ?

thank you