Comparing this to the BLF SRK FET driver, it should be safe to bridge any of R10-R13.
I suspect that the missing inductor, diode D4, and 6-pin IC are for a boost converter to drive the LEDs in series. However, the inductor and D4 can be added just like the BLF SRK FET driver to give lower low modes. It seems to me there is potential to use this board along with a Nanjg 105C to get similar functionality and also allow for using one 7135 on the Nanjg for more efficient moonlight mode.