There's always a way, but you would have to somehow grab the latest firmware and decompile it.
Rumor has it that when Vortex releases the LED version of the Pok3r, the firmware can be flashed onto the existing Pok3rs. You may want to wait till then.
I am not responsible for any issues that may arise from trying this, but you could also solder wires from where the caps lock LEDs are to the Esc key leds.