Adding custom "lookup" fields in Zoho Customization

Adding custom "lookup" fields in Zoho Customization

How can I add a second “lookup” field in Zoho? I’m trying to create another lookup that pulls from my Contacts, but the option doesn’t appear in the module customization sidebar.

In many cases, a single work order involves multiple contacts. Ideally, I’d like to add an additional contact using another lookup field rather than creating a duplicate work order for each person involved. Is there a way to achieve this in Zoho FSM, or is there an alternative solution?