apologies if anyone has already suggested this, but it could be nice to have an option that allows for review modes to automatically cycle between a selection. For example the first review for a grammar point could be to manually input, while the second could be to reveal and grade understanding. Then the third would cycle back to manual input.
Honestly though, i think this will be a lot more helpful for vocab since a lot more kanji is used which means that we need to practice seeing the kanji and recognizing the word. Doing just that, however, makes output a lot harder since we never really need to remember the pronunciation without first seeing the kanji.