The Import Equations function has some quirks that have been bugging me.
1) It does not explain what each of the two pictographs means. I can guess, or look in the help file, but who wants to do that? I want the thinking done for me! Even if I mouse-over, no tooltip pops up.
2) The scroll bar is not the right length. Usually in windows, the scroll bar gets smaller when you have more stuff. It is a spatial analogue that represents the fraction of the full list that is currently visible. Judging by the length of this scroll bar (see screenshot above) I would expect this list to be only a couple of items beyond the visible space. In fact the number of items is twice the number that are visible (see screenshot below). This seems like a bug.
3) There is no obvious way to quickly select or deselect multiple items. If I want only one equation, I have to manually go click click click and deselect them. Eventually I decided to simply import all the equations, even the ones that I don't need.