I've created a new RFE that could use your votes (and improve your Db2 performance). The url is https://www.ibm.com/developerworks/rfe/execute?use_case=viewRfe&CR_ID=114749. Expression Based Indexes are a great new feature (as of V10.5). Inplace Reorgs are a great feature. But, you cannot do an inplace reorg on a table with an Index on Expression.
Please vote for this to let IBM know you want your cake and eat it. Thank you.