Want to improve parameter FREEVOL on DD statement

My customer wants to improve the parameter FREEVOL on the statement DD, to release all volumes of a multivolume tape file. To permit an other JOB2 that will be use the same multivolume tape file, to obtain volume serial as son as JOB1 release the ENQ of volumes.
Sample:
JOB1 File1 volsers: 000001 000002 000003 000004 000005 000006 000007 000008
JOB2 File1 volsers: 000001 000002 000003 000004 000005 000006 000007 000008


DD statement
FREEVOL parameter
Parameter type: Keyword, optional
Purpose: Use the FREEVOL parameter to specify whether to allow other jobs to read freed volumes of a multivolume tape file as the volume is dismounted by the job.
When multiple DD statements in JOB1 specify one or more of the same volume serial numbers, and also FREEVOL=EOV, it becomes possible for JOB2 to obtain the ENQ on the volume serial number and begin processing as soon as JOB1 releases the ENQ. This results in JOB1 abending when attempting to process a subsequent DD with the same volume serial number, because the volume is no longer available to JOB1. In addition, FREEVOL=EOV has no effect on the allocation requirement that all specified volume serial numbers be available for
enqueue; if any are not available, allocation issues IEF235D and waits for volume availability or for the job to be cancelled.

Note: FREEVOL is most effective when a second job waits for a single volume. If it waits for multiple volumes, it will still need to wait for all volumes to become available.