Is there a way to edit or add a custom field under the Quotes module and under Line Items? Under that you add a group and row, and I want to edit or add a dropdown in that content. It would be after the "in %" checkbox.
This customization needs little more effort and need to modify a set of files.
Here is a link which you can refer if you would like to try from your side. Let me know if you need any assistance.
Retrieving data ...