Does anyone know if Repetier firmware 0.91 firmware can be used for 2in1 extrusion?

Does anyone know if Repetier firmware 0.91 firmware can be used for 2in1 extrusion? I have a Y splitter printed and waiting for assembly.

pins.h:
line 1485: #define HEATER_1_PIN 9 //originally 7
line 1486: #define TEMP_1_PIN 0 //originally 3
line 1517: #define E1_PINS E1_STEP_PIN,E1_DIR_PIN,E1_ENABLE_PIN,E1_MS1_PIN,E1_MS2_PIN,

Configuration.h:
line 49: #define NUM_EXTRUDER 2

Couldn’t say with Repetier, only ran it with Marlin 1.1 RC7 and Smoothie, I’ve given up on it at the moment as I don’t have time to sit with it.

Well, I managed to get the two motors and the nozzle temperature control to work. I have to manually change the temperature of T0 and T1. The two hotends are set to use the same control pins. It seems that the Dead Wait control mechanism may get interference. I am not sure. It has been odd so far and I am not totally sure of what I was seeing. I have to get another bowden tube and then get my convex/concave (whichever it is when the nozzle movement bows away from the bed) issue fixed and the configuration webpage and the resulting Configuration.h do not seem to provide all of the proper variables and/or explanations of them. It will be quite a while before I attempt using a 2in1 setup. The next step after the convex/concave issue is to switch which bowden tube is plugged into the hotend.