The TL;DR for 3/4 way with these is that you need to associate groups 2,3,4 from any secondary switch to the primary switch (the load switch). And then you need to associate groups 2,3,4 from the primary switch to any secondary switch. On all of the secondary switches you need to set param 59 to 1. On the primary switch, you need to set param 59 to 3. You will then control the primary switch from your hub in all of your automations and the secondary switches will stay in sync.
@Eric_Inovelli will have better instructions but that’s the quick summary from my setup.