You need to do an RX transaction to back out the OTS description of service, and LX transaction to put in the correct description of service which is CMP. Here is an example.
Seq: ______Tr: RX Per End: 083199 Pay Cy: M Dst:33 E:__ T:__ D: Ttl: 7616
LACFPS: 8 681059____19900______1 Rate: 2700.00 AH: A
DOS: ____Time: _____H% __DOS: OTS Hr: 8.00 DOS: ___ Hr: _____ WSP: ____

There are 2 ways to pay compensatory time. One way is to go to the Main Menu and select EDAT, then EDAP (Additional Pay Screen). You have to enter CMP on the 2nd or 3rd DOS (description of service) field.

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