P: When moving/adding photos between albums, show list of folders/albums collapsed
I have many folders, sub-folders, and albums in my library. When moving photos between albums, Lightroom expands all folders down to the album level when displaying the list of available albums to move the photos to. This is infuriating and causes much needless scrolling to get to the desired folder/album (usually at the bottom of the list because I organize by date and Lightroom displays the list in ascending order). This is only an issue on Lightroom Web (my typical browser is Firefox) -- the Lightroom iPhone app displays folders as collapsed, which is how it should be on Web as well.
