Is it possible to edit the item fullfillment form and give it an extra field with a PLUS button, as we have on our workorder with project.. I want to create a new field, where a person can click the plus button, and create a new COLLI number in the system, via the item fulfillment form, but im not sure if the plus button is available, and if it is im not sure on where to access it and append it to the field on the form. 🙂

You need a field of list/record type with the COLLI list/record in it. The plus button automatically appears if the list/record has "Allow Quick Add" enabled AND the user who is editing the record has permission to create new COLLI list/record entries.

@Diderik I noticed that the plus button only appears in edit mode. When a user presses the fulfill button, he will be taking to the form as sown on the picture. But that form does not allow the user to enter edit mode. Would the plus button still appear in that case? even tho the user is not in edit mode?

In the picture the user is creating a new item fulfillment which behaves similarly to edit. So yes, the plus button would still appear

Awesome thanks!