It would be awesome if we could allow custom fields to be selected for the "Asset Data Change Tool". Currently I have to spend hours updating our "Last Rebalance Date" field individually because the Asset Data Change Tool won't let me mass edit this data. 

I think many users would benefit from this so they can bulk edit custom fields that are important to their reporting processes. That have to be manually updated because the current Asset Import features don't include these fields either. 

- Thanks!