Hi Darren, that is great, but I don’t have that key. What I have done is to Emulate Numpad and then use Alt 1, Alt 2, Alt 3 for the Vertex/ Edge/Face Selection.
You can change that to whatever you like in Preferences > Keymap > 3D View > Mesh > Mesh (Global) > Select Mode.
I also had the problem of missing shortcuts in 2.79, because I don’t have a Numpad, but in 2.80 there are more ‘free’ keys so it’s easier to make your own shortcuts…