How to display the section based on user role on Frappe CRM Lead/Deal?

We have different type of user roles.

Based on the role, How to define who can see some data and who can not??
Let’s take an example.

I have inquiry for product. I have added a child table on view.
I have sales representative who creates this inquiry. Now there is sales manager who is allowed to fill out price for this lead. I only want that sales manager only able to see it so how to achieve it?

Use Perm Level property for that field. Go to doctype list. Select doctype and field which you want to hide. In properties section, search perm level, select 1. Now in settings tab of doctype, go to Permissions section. In that add Role, perm level 0, give necessary permissions. Add another row with same role, here restrict that user with your required permissions