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 Will SRAM make periodic RED eTap 2x11 firmware updates? Can I set up the SRAM RED eTap 2x11 system to do sequential shifting? Will the blips only perform the same shifting operation as the shifter they are connected to for eTap 2x11? Can I change shifting modes or settings without using the app? Do I need to do anything different when washing a bike with SRAM RED eTap?