Two named settings used to take about 20 clicks through a menu and
Settings. + Choice saves how a node is set under a name, and the second
one turns the card into a pill. What a choice changes is what it holds
differently from the other choices, so it needs no off side. A choice can
also hold the nodes only it needs, so a missing model in the branch nobody
picked no longer stops the run.
js/docs/agents/workflow_switches.md tells an AI agent how to write a card
into a workflow file. It sits under js/docs because that ships with the
pack. A test holds its examples to what the card really stores.