The reference trace is a function to check "what (reference source) data is being referenced" on the screen. Please read "References (to the referrer) trace".
Prepare an "estimate" model referring to the "product" model.When this function is enabled, the display field (reference destination trace link) of the estimate model referring to you is prepared on the detail screen of the product model.(Figure 1)
Clicking on the "[+]" part of Figure 1 will expand it in the list display format.(Figure 2)
By pressing the "details" button in Figure 2, you can switch to the quote referring to this product model.(Figure 3)
Opens the type detail setting dialog of model item in the item definition with "reference item of other model" set.Activate the option "Display reference target trace link".(This setting is disabled by default.)