Support Nested Fieldsets in Forms 2.0

Support Nested Fieldsets in Forms 2.0

Straightforward request: both the W3C and WHATWG consider nested fieldsets to be valid HTML.

 

I would like the ability to use nested fieldsets inside the Marketo UI for second- and third-level groupings for forms. Having this work inside the UI rather than in custom code ensures marketers can control any level of nesting needed for their forms.