Access Salary Structure Fields in Formula

Dear ERPNext Team,

We are implementing ERPNext for our own company which is into field-force service domain.
In our old ERP Application there was a custom object/ page/ class called as Wage Rule (more than 80 conditional fields).

In ERPNext, Salary Structure and Component fits well. Though in the formula filed of Component, fields are only taken from Salary Slip. We cannot create 80 odd fields in Salary as these fields are more like one time configuration. I would rather want to access Salary Structure fields in Formula of Component.

Please suggest what is the right way to go about with this issue.

Awaiting your response.


Additionally we are using one child table in Salary Structure, we would like to know if we can access child table data as well.