You will have to have multiple drop-downs or radio buttons depending on look and selection you want to show. It all stems down to the Disabled variable in the Advanced section for the drop down. You will set tis to False to have it shown, so initially the sub-types will be true or not disabled. When you change your selection on 1, you will use the Change Action on drop-down one to set the variable of Drop-down 2 Visible. So, when something is set on 1, it will enable 2. The tricky part is having variables control which one is visible or not. That will entail setting variables based on other variables, perhaps through a custom action.
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Robert Wakefield-Carl
Avtex Solutions, LLC
Contact Center Innovation Architect
robertwc@avtex.comhttps://www.Avtex.comhttps://RobertWC.Blogspot.com------------------------------