When using Export to Disk, selecting multiple export options (left side of the export dialog) requires clicking directly on the check boxes, which are rather small, especially on a 4K monitor. Clicking on the option “body” (the area containing the check box) deselects the previously selected options and selects the one clicked on last. This makes it inconvenient (for me, at least) to quickly select e.g. 3 export options. I frequently find myself missing the check box, deselecting the previously selected options, and having to select them again.
It would very convenient (and consistent with Windows UI conventions) if, say, a Ctrl+click on the export option body left the previously selected options checked and added the clicked-on option to the selected set.