Associate Multiple Existing Contacts with a Custom Module Record

Associate Multiple Existing Contacts with a Custom Module Record

Please tell me this typical CRM functionality is available in Zoho CRM.. 

A lookup only allows one.. but I want to relate several contacts in a related list to one record in a custom module.. And creating NEW is not an option.

Simple concept for a custom module to identify workshops.. and related contacts to be participants in a workshop.

Please shed some light.