Archiving items
If you don't want to see an item, you can archive it, so it won't be visible when browsing. Just press the Archive button.
Don't worry, you don't actually delete them, and you will be able to see them if you turn on the visibility of archived items when filtering.
You can also restore archived items if you changed your mind.
It can be useful when you don't have an item that is listed by default, or it's an accord that didn't turn out to be good enough, but want to keep it, or if you follow the Jean Carles method, and wouldn't like to save every single mixture of it.