Spell check in Indesign is not fit for purpose in its current state, it is slow and clunky and gives no indication of where you are when checking a long document, could it not give a list of words like links panel that you can click to go to? At least implement some sort of progress bar and indication of how man words are incorrect/need reviewing. The forwards and backwards button do not help in any way - i'm sure the reason you need the change direction is only because its so slow and clunky that it goes past a word from clicking and need to go back - so please, either a list of words with word count on how many spelling queries or a progress bar on how many words still to check