I am trying to translate a word into English. (More details at the end, but please read this first, so that your judgment is not influenced by my bias).
What I am trying to find is a word for this situation:
Say, I have a machine that gives packages of candy. Let's say I can get 10 packs of candy. At the end, the machine will print in the last package "Hello from the candy machine" or whatever. So the initial state is that this printing is done always at the end. Let's call this "Print at the end mode"
But I want another mode, in which I can indicate the machine that I want the message to be printed every 2 packs... or every three packs... or every five packs...
You see, I can customize at will at what point I want my event (the printing) to happen. How can I call this mode?
The word I am trying to translate is the Japanese 任意, which according to dictionary means "at your discretion" "voluntary" "any" "arbitrary" "optional" "discretion" "free will".
I don't think one of this would be appropriate for the problem above.