First of all, thank you for your custom support. Not so long ago I made another post and a useful answer was given in no time.
I have come to desire this feature more than once, since otherwise shortcuts cannot be always exploited.
For example, if an /input box is placed in the card, after typing the answer I cannot press the space button to show the next side or to mark the card as remembered.
When the 'due today' section is relatively crowded (its the case of my "English-words" deck), being able to immediately mark cards without having to use the mouse is an handy feature. However, as I have pointed out, it is not always possible.
Everything else is great. Good work.