Official comment
Sorry, what you're asking isn't possible.
By design, relative mode works only to know which direction and how fast the playback takes place. It doesn't care where in the timecode it happens. The reason you can loop and hotcue within the software in REL mode is because the timecode signal continues to move and the loop jumps position. The software just says "okay, which way and how fast."
Absolute mode allows you to cue, because each time you hit the cue button, a tiny bit of signal indicating THAT POINT of the timecode is sent, telling the software "Hey, I'm here, and this is how fast I'm playing in this direction." What you CAN do with ABS mode is loop or jump to hot cues on the player itself, because, again, that timecode tells the software WHERE in the audio to be.
If you're using CDJ2000's, why aren't you using them as HID controllers for rekordbox? It's much more accurate, with lower latency, and you get all the functionality of looping and hot cues from the players to control the software.