LayerList Widget: grouped layers expanded by default?

[RobertSommers]

I've founding using grouped layers is a great way to save time since all of the layers come through as symbolized in the MXD.

Anyone know if there is a way in Developer to set the grouped layers to be expanded by default? 

Thanks,

Derrick

[ScottKiley · Accepted solution]

Derrick Frese​ - Mona Brisco​ posted a code snippet on a similar thread here: https://community.esri.com/thread/163980

[RobertSommers]

Scott - thanks for your help!