https://doc.sccode.org/Reference/NodeEvent.html
has this non-working example:
g = (id: 2).group;
g.play; // ERROR: Message 'defaultGroup' not understood
a = (group: 2).synth;
a.play; // FAILURE IN SERVER /s_new Group 2 not found
g.release;
g.stop;
I see the one further down the page
// define a multiple Group event
g = (id: [2,3,4,5,6], group: 0, addAction: 1).group;
g.play; // play it
actually creates those groups, so probably it needs group: 0
, i.e. the parent group specified.
However, the following lines also have problmes:
// make a Synth event
b = ( freq: [500,510], group: [2,3]).synth;
b.play;
The synths don’t actually get created in those groups: