Service Catalog Process Task List

We are creating a task list for a new install that involves three teams to accomplish. Right now, I have added the tasks under processes individually with the appropriate team assignment. Is there a more efficient way to accomplish this instead of having 26 tasks listed? For example: Can I somehow have each group and the tasks they have to accomplish listed so there is an indication of when each group completes their part of the install? Should it even be a service catalog form? Any useful advice would be appreciated.