CC2640R2F: creating production BIM+STACK+APP image

Hello,

we are using BLE 5.0 Stack SDK 1_40_00_45 and hand have created 3 hex images for BIM, Stack, APP. When we flash these usingSmart RF Flash programmer 2, everything is working and we are able to OAD update the app subsequently using BTool. All ok and working. 

Now we would like to generate 1 single master "production" hex image containing all 3 images. We have read "Generate production Off-Chip Image using IAR" in ti/simplelink_cc2640r2_sdk_1_40_00_45/docs/ble5stack/ble_user_guide/html/oad/oad_appendix.html#generate-production-off-chip-image-using-iar

but are not sure we understand this completely. In the doc, the command line post build action is given as follows:

$TOOLS_BLE_DIR$\oad\oad_image_tool.exe $PROJ_DIR$\FlashROM_OAD_Offchip\Exe\$TARGET_BNAME$.hex -t offchip -i app --imgVer 0 -ob $PROJ_DIR$\FlashROM_OAD_Offchip\Exe\$TARGET_BNAME$.bin -m 0x0000 --r 0x0000

But we don't fully understand the given command line arguments. specifically, we dont see a reference to the BIM or stack images this comandline. Can you explain in more detail how we could generate a master production image that contains all 3 images?

Thank you