My question is pretty simple but I can't seem to find the answer anywhere.
Is there a way to make cards in your needed section as foil, like just simply mark a counter spell that you need as needing a foil one specifically?
Sure, just switch to Edit mode in the binder view (Edit mode is toggled with pencil button). Or, the Binder Entry view can be displayed from any Quick Edit view by tapping on the binder's color box.
Thanks