Can I customize the shifter paddle or blip operation? E.g. have the left paddle shift up or connect two blips to one shifter and have each blip shift in a different direction? No. It is a closed system. The RED eTap 2x11 system is not programmable. Note: SRAM AXS controllers that are paired to 11-speed SRAM Red eTap derailleurs will not be configurable in the AXS app Related articles Can I hold down the eTap 2x11 shift lever to do a rear multi-shift? Will the blips only perform the same shifting operation as the shifter they are connected to for eTap 2x11? Can I set up the SRAM RED eTap 2x11 system to do sequential shifting? Will SRAM make periodic eTap 2x11 firmware updates? Can I program the shift speed?