Do all concurrent changes only

To remove and activate a limited set of concurrent internal code changes for each CPC, without disrupting its operating system activity, select Do all concurrent changes only.
Note: The concurrent changes removed and activated for each CPC will be limited to those that can be activated without first removing and activating a disruptive change. That is, for each internal code change, only concurrent change levels down to the highest disruptive change level will be removed and activated.