Assistive touch with right click on mouse

I recently bought a usb adaptor so I could plug in my mouse and keyboard to my iPhone so I could play games like Minecraft, it works well however I have to turn assistive touch for the device to work. So my problem is when I’m in Minecraft, whenever I right click it automatically switches back to touch mode, I’ve tried to “customize additional buttons” and change my right click to “none” but that just makes it useless, is there any way I count make my default click to something else instead of my right click?