Since SSDs are becoming more common, disk defragmentation is becoming less needed, which is why there is no disk defrag in CSU
How about add a SSD optimization tool in CSU. Something similar to what PerfectDisk 12 has.
SSD Optimize is an optimization method for SSDs that focuses on free space consolidation without defragmentation of files. Solid State Drives are not affected by file fragmentation like traditional electromechanical disk drives. As such, it will leave files in a fragmented state while consolidating free space into large pieces.