Any way to access components labeled D36 - D43 on the creator?
Welcome to the community!
Apologies for the delayed response.
D36 - D43 are by default controlled by GPIO 13 on the Raspberry Pi which serves the function of IR TX, see pin-out here.
The FPGA code snippet that determines this can be found here.
Those LEDs cannot be controlled individually as they are connected in the PCB but the whole ring can be controlled by alternative means if desired. Just the line linked above has to be changed in the FPGA code.
Here is a guide on how to change, compile, and flash new FPGA code.