Cannot change input without plugging in HMD

[smitdylan2001]

I cannot add any input (open Input Binding UI) without plugging in an HMD. I find this weird, since the input bindings are for all controllers and not just the HMD being plugged in. I tend to work some days without HMD, but do want to change bindings to test the next day, which is not possible with this.

Unity 2020.3 LTS and SteamVR 2.7.2