allow old cards to be archived so they are accessible for historical reasons but not shown in the main program screen
Separate folder for old archived cards
@Gingi, I actually did the same thing! But tagged them "OLD".
Antonio Cambule commented
Also that this can be workarounded like @Gingi said. This is a nice idea, i vote for, as it is easiert to push a button. Maybe we can tell in options how the "history" tag is named.
And every card will be automatically not be shown anywhere, except the history card
Personally I'm using a workaround: create a tag called "History" and assign it to old cards removing the "main" one