Tartarus V2 Lighting and Replacement Part

So this is a 2 parter but really part one is what matters more to me. Is there a way to set up a lighting configuration with a certain keymap? I have 2 keymaps I use on my tartarus and would like the lighting to change for both it and my mouse when I switch to a different keymap. I thought i could use a profile instead but could not figure it out. The second part is I wasn't sure where or how to get a replacement thumbstick for the Tartarus. it's detachable and I need a new one. Thanks in advance!