Does anyone know how to access a field in a workflow that is not available in the drop down? I am trying to default the value to null, but the sublist field is not available to default in my workflow.

Used to be that you couldn't do anything with sublists in workflows. Now you can access some, but not all sublists are available, so you definitely have to check SuiteAnswers and/or call support to make sure.

okay, thank you

Also back in my day we used to walk to school in the snow uphill both ways 😉

Last I checked only the "Item" sublist is available.