@Mubasher users having that role will be able to read opportunity list based on this settings . if you check create , they will be able to create new opportunities . etc…
no sir for that we have read option what is the purpose of select option
@Mubasher Read: If a user has “Read” permission for a DocType, they can open and view the details of individual records of that DocType. They can see the complete information as per the field-level permissions.
Select: If a user has “Select” permission, they can view the records in list view or grid view, search for records, and see which records are available but might not be able to see the detailed view of each record unless they also have “Read” permissions.
for that read option is also working i dont need select option