Try these screencasts as a starter on conditional value lists:
Maybe they will help you understand conditional value lists and then you can make one for yourself.
Another option would be two scripts. One that brings you to a list view of members. And then you can have buttons in the header that show you:
- Active members
- Inactive members
- All members
And then you select one member by clicking a button or their name and you are taken back to your original layout.