I tried the manual mode and not to sure about that. A very different approach to opening a dialog box, I just hope that as I get older, my hands don't start shaking
I am older already, so I like the F11 key to open the box, and either a mouse waggle to close it, or another click of the F11 key to close it.
In my mind, I use the print property box to select or change a print size, the majority of the time.
Once in a while, I might need to rotate a print, and maybe a border here and there.
Once I have my print size, I am usually done with that box.
I now have the choice of letting the print property box flag left, or flag right as it has been, or in case you are not pleased with that box opening when you no longer need it, you can set the option to Manual, and use the mouse waggle system, or (for me) the F11 key.
The box will no longer open when you don't need it regardless if you click here or there. You have to request it by mouse waggle, or F11.
That should please most everyone.
Frankly I like playing with the mouse waggle thing. It's Special!
Fred