Three questions about fields in worksheets
 

Hello! I have a workbook that tracks patients (mothers) and contacts (mom's
family members). The mother worksheet is named MAT_INF and the contacts one
is named CONTACTS.

1. In MAT_INF, I have a field named CASE_NUMBER. How can I tell this field
to automatically start out with a value like "2009-"? An example case number
would look like 2009-001 or 2010-099.

2. Once CASE_NUMBER, LAST_NAME_MOM and FIRST_NAME_MOM have been populated by
the user in MAT_INF, how can I automate adding those values to the CONTACT
sheet, where the corresponding fields are named CASE_NUMBER, CASE_LAST_NAME
and CASE_FIRST_NAME?

3. Once CASE_NUMBER in the CONTACT sheet has been brought over from the
MAT_INF sheet, how can I add a sequential number to it? For example, for
CASE_NUMBER 2009-001 from the MAT_INF sheet, with LAST_NAME_MOM equal to Doe
and FIRST_NAME_MOM equal to Jane, how would I get the CONTACT information to
look like CASE_NUMBER 2009-001-01, CASE_LAST_NAME equal to Doe and
CASE_FIRST_NAME equal to Jane?

Each CASE_NUMBER from the MAT_INF sheet (Jane Doe, 2009-001) may have 1 or
more contacts (other family members) in the CONTACTS sheet. So we might have
an entry in the CONTACT sheet like 2009-001-01, CASE_LAST_NAME = Doe,
CASE_FIRST_NAME = Jane, CONTACT_LAST_NAME = Doe, CONTACT_FIRST_NAME = Zippy.

Any help would be greatly appreciated!!! Thanks!