My guessing is using calculated member in a dimension. But I cannot make it work. I know you can add members to time dimension, so I guess there are similar ways to add non-existed member to other dimensions.
eazyBI can’t get dimension members who don’t exist in the eazyBI database, that is, no issue with these values in the custom field have been imported into eazyBI.
Right now it looks like the best option is to create a “dummy” issue with the custom field values selected. That way, you will be able to identify the values that have been chosen only for that one issue and nowhere else.
Martins / eazyBI support