I want to get the "Accordion" effect you find in the some tools dialog boxes in my own Python Script tool. I can't find anything on the ArcGIS Resources website about this.

An example is shown below:

Screenshot of EBK tool dialog

I am referring to the feature shown in "Additional Model Parameters" and the other additional toolsets.

  • The headings of your "accordian effect" are called Categories - the help link on the duplicate Q&A includes additional information about them. – Midavalo Apr 12 '17 at 3:37
  • @Midavalo that's what I was looking for. Thank You! – chaptuck Apr 12 '17 at 19:33