You can find these options in the EM Settings menu.
What You Can Do Here
Create automation rules for exposure management in the EM Settings view.
Create ticketing rules.
Create project rules.
Define rule metadata by entering a Rule Name.
Specify the Exposure Type to apply the rule to either Asset Vulnerabilities or AppSec Findings.
Select the appropriate Ticketing System and configure integration parameters.
Associate the rule with a specific Project and define the Issue Type.
Complete and confirm all ticket system configurations through the Ticketing System Parameters panel.
You can also see the walkthrough in this link