Razer not having DPI cycler inn macro?

This is honestly the most frustrating thing. You want to compete, but can't even add a simple feature like this? There's no reason not to do it. It would make users much happier. Telling people to "just add a sensitivity changer to a key" doesn't work when every other button on the mouse is already taken. All I want is a simple solution: hold down the right-click to lower the DPI, and release it to return to normal. I thought Razer was good, but I might have to switch back to my old mouse for games like RDR2 and GTA 5, where my normal sensitivity is too high even on the lowest settings. I use 400 DPI normally and 150 DPI when aiming.