'All the members' present in that field of the section access and not them which are not mentioned in the section access. Or in other words, "*" means all listed values .
Here in REDUCTION field, section access has three values (1,2,3) listed, whereas in the application - REDUCTION has five values(1,2,3,4,5). BUT, even though for ADMIN user "*" is given for that field, the ADMIN user would be able to see only three(1,2,3) values instead of all five. This is because "*" means all listed(1,2,3) values. Hope this helps.
