3. Select  File Save Session  (see Figure 4-50). Figure 4-50 Save session Note:  Consider saving your project before exiting the CMT application. After you map the CHIDs to CHPIDs by using the CHPID Mapping Tool, transfer this  information back into HCD. In our example, we call the host file name  ‘ ITSO 1 .IODF78.IOCPOUT.MUSCA’ . To update the IODF with the CHIDs, complete the following steps: 4.13 HCD: Updating the 3907 work IODF with CHIDs 1. Upload the IOCP file that was created by the CMT ( MUSCAout.iocp , in the example) to the  z/OS image. Use a file transfer facility, such as the one in IBM Personal Communications  or an equivalent FTP program. Be sure to use TEXT as the transfer type and allocate the  z/OS file with RECFM=F or FB and LRECL=80. In the updated IOCP statements file, notice that the CMT keeps a reference to the CCN.  Also, note the CU Priority values that were added for the OSC control units. Remember:  Control unit priorities are stored in the IOCP output file that is created by  CMT. This file is migrated back into HCD. HCD maintains these priorities and outputs them  when it creates another IOCP deck. These files are in the form of commented lines at the  end of the IOCP deck (see Example 4-2). CNTLUNIT CUNUMBR=FFFC,PATH=((CSS(2),E1,E0,E3,E2,E5,E4)), * UNIT=CFP IODEVICE ADDRESS=(FFA5,007),CUNUMBR=(FFFC),UNIT=CFP IODEVICE ADDRESS=(FFBD,007),CUNUMBR=(FFFC),UNIT=CFP IODEVICE ADDRESS=(FFC4,008),CUNUMBR=(FFFC),UNIT=CFP IODEVICE ADDRESS=(FFCC,008),CUNUMBR=(FFFC),UNIT=CFP IODEVICE ADDRESS=(FFD4,008),CUNUMBR=(FFFC),UNIT=CFP IODEVICE ADDRESS=(FFDC,008),CUNUMBR=(FFFC),UNIT=CFP *CMT* VERSION=000 *CMT* CCN=02433073(CFR from ResourceLink) *CMT* 1B00.0=0333,1B00.1=0333,PF100.0=0001,PF200.0=0001,PF101.0=0001 *CMT* PF201.0=0001,PF102.0=0001,PF202.0=0001,PF103.0=0001,PF203.0=0001 *CMT* PFD0.0=0001,PFC0.0=0001,PFD1.0=0001,PFB0.0=0001,PFC1.0=0001 *CMT* PFA0.0=0001,PFB1.0=0001,PFA1.0=0001,PFB2.0=0001,PFA2.0=0001 *CMT* PFB3.0=0001,PFA3.0=0001 ******************************** Bottom of Data ******************************** Example 4-2 Updated IOCP statements file: With CMT statements 80  IBM z14 Model ZR1 Configuration Setup