Can someone explain how the "IDLE" option on the roster works? I've never had to use it before and I've emailed several times to SSUSA HQ and it's gone unanswered.

Is it a loophole so you can have more than 20 people on your roster?
If someone is on your idle roster can someone else claim them off of you idle roster?
Can a person continuously go on and off of it?
Can you put a "Chip" player on it who's hurt and use it to pick up another "Chip" player while they're hurt?

Just not sure how it works as I've never seen it before this year, have always had about 15 guys on my roster and just used that to fill spots.