Adding dairy milk to calculator question

[aahhhh]

New to soap making world.. I’ve made a couple successful batches and I have a farm and now I’d like to add some dairy milk. What I understand is to use as a replacement for the water lye solution. I understand that process, but I’m new to this calculator and wanting to try it out... where would I plug this in? Only option I see is to the oils, is that correct?
thank you in advance!!!

 

[Yooper]

You'd use it in place of water, in "liquids".

 

[Yooper]

For example, here's one of my recipes, and my notes at the top tell you to add milk instead of water:

 

[aahhhh]

Okay thank You for the tip!