Loop listed channels
This action starts an unnamed loop of all the channels in the last received channel listing.
For each channel, the Channel listing > On channel listing loop event is triggered, with one of the channels in the channel listing selected, allowing you to read the details from channel listing expressions.
By default, the channel listing is in order of first to last created channel.
Once the loop is over, the Channel listing > On channel listing loop finished is triggered once.
All those loop events happen instantly. Read more about how loops work here.
You may want to run it in response to an Channel listing > On list received condition.