I would love to use Blender while commuting by train but the interface is just awful to use via touchpad, even with 3 button emulation.
I’ve been wondering, would this work? https://www.logitech.com/en-gb/product/wireless-trackball-m570-business
It’s got all the buttons of a regular mouse but the trackball makes it possible to use it on a small surface.
Of course it will take some getting used to, but are there other downsides I’m not thinking of?