Inactive Notes / Archiving

I would suggest that it be made possible to mark notes as inactivated, or to put them in an "Archive" folder/case. [Uses for this: temporarily or permanently keeping notes from appearing in Lessons.]

(I don't know if this feature should be a priority. Unless someone thinks it would be really useful in a way I haven't thought of. I do occasionally wish for it, but it's not something I lose a great deal of sleep over. (I might use it if, for example, I created a large number of notes in a short amount of time, and didn't want them all appearing in my Lessons at once. I would activate a few of them at a time, over the course of days or weeks, without having to create and store them in some other application, then tediously cut and paste them into Mental Case when I wanted to start learning them.)

One might even consider having a function for delaying the activation or unarchiving or whatever of particular notes for a set amount of time, after which they would automatically [re-]activate.]