It would be nice if the menu: Right Click>Export Parameters>... would remain open so you can check/un-check multiple options in one go. Right now, if you need to expose multiple parameters, you need to do a whole bunch of clicking which can get a little annoying and time-consuming after a while. (same goes for Export Attributes and even Add nodes functionality)
My suggestion is keeping the menu open until the user clicks somewhere outside the menu would be preferable. Or maybe preferable: keep it open as long as the user shift-clicks.
This way previous functionality does not change when using other options in the right click menu.