Just F2, but I had to get used to that already with my previous keyboard (Microsoft Sculpt). But I let all F keys bound to the Layer 2 as per the ZSA defaults.

Just F2, but I had to get used to that already with my previous keyboard (Microsoft Sculpt). But I let all F keys bound to the Layer 2 as per the ZSA defaults. And Alt + F4 is bound to a double tap of the right red thumb key :D