Sync datatype fields

Hi!, is there some way that I can sync a field of 2 things with the same datatype? I am building a quotation app.

Say I have a datatype called “Line Item” Under that line item I have a field that is called “Costs”

The Line Items will be created in a central library of Line Items.

When I make a make a new quotation, I want the app to make a copy of said Line Item, and link the cost of the new thing to the original thing. In other words, when I change the cost of the Line Item in the Central Library, all of the copies of the Line Item that reside in my quotations should also have their costs change accordingly.

@samueltanyk

Explore a backend workflow with data change trigger

Thanks!