There can be cases when you have added dot-walked fields on the form and you want to make all dot-walked field fields read only or writable without making changes to ACL or UI policies.
-- Open the form you added dot walk fields to
-- Do configure dictionary and look for dictionary record referencing to parent table you dot walked your fields from
-- Check the read only check box for this record to make all dot walked fields read only
Here is an example:
-- If you added dot walked fields on problem task table from problem table
-- You will need to make reference column problem referencing to problem table read only: