thanks k, i see what your saying, but I still can't get multiple cases to work. Let me give a better description I'm pulling data from two tables:
Record Table Record_Detail Table
record_id record_id
date_start record_accsy_id
date_end
In this case, I have record_id 999 which has multiple entries in the record_detail table, ie:
Record_id Record_accsy_id
999 01
999 02
999 03
999 04
I already have a select filter that only pulls certain record_accsy_id's, {record_detail.record_accsy_id} in (01, 02, 03). Now I have an additional column in my report that needs to tag a specific abbreviation to each record_accsy_id. (01 = "AA", 02 = "BB", 03 = "CC"

. The ending report looking something like
Record Accessory
999 AA BB CC
Maybe this provides a clearer explaination of what i'm attempting to do. Thanks for your responses!