If you're looking for the data of the stat groups assigned to particular master data, you can create a graphical query in X3 to pull the following in separate queries.

1. Product Stat Group values in the ITMMASTER table and stat group values are in the TSICOD  field.

2. Customer Stat Group values in BPCUSTOMER table and stat group values are in the TSCCOD field.

3. With regards to analytical values (dimension values) you can query the Dimension type (DIE) table and Dimension values are in the (CCE) table.

I'm trying to show our team what stat groups exist and what the possible values are for each group. This isn't about actual values being used yet, it is simply about the possible choices. Where are the stat groups and possible values stored so I can query them? Thanks.

You can attempt to query the information from the ATABDIV table. (Miscellaneous Tables)

There's a thread out there from Marco on getting the data from ATABDIV. He suggested an expression using the function AFNC.TEXTRA . Worked great for me.