Question:
Why the Start Dialog Display does not display in Vault?

Answer:
The Start Dialog Display indicates whether the selected user control on the workflow Start Dialog is required, optional, or controlled by a set of workflow participation rules. To display the Start Dialog Display, an Admin needs to enable the Advanced Workflow Role Configuration setting.
- Navigate to Admin --> Settings --> General Settings --> Workflow.
- Select Advanced Workflow Role Configuration.
Related Documentation:
Vault Help Documentation: Start Dialog Display
Thank you