Solved! Switching between Surface & Chromebook one one external monitor without KVM switch?

[vermarine]

I have a Surface Book 2 and an HP Chromebook but can't find out how to connect both to a single external monitor - only one visible at at time is fine, no need to be able to see both at once on the monitor - without going the KVM switcher route. I think it is possible to switch using monitor software controls, but a physical switch - using one click rather than navigating an on-screen menu - seems simpler and easier. I would be grateful for recommendations.

 

[hang-the-9]

Both those should have HDMI, just need an HDMI switch https://www.amazon.com/Switcher-Benfei-Bi-Direction-Hub-HDCP-Passthrough-Supports/dp/B07DNB98HH/ref=sr_1_2_sspa?dchild=1&gclid=Cj0KCQiAhZT9BRDmARIsAN2E-J1D21IBJ7zHOI_89mDnwb4qOQ8jV9S7z4LUdly_MsOB9AW35iYn3NEaAjr9EALw_wcB&hvadid=409957513138&hvdev=c&hvlocphy=9001809&hvnetw=g&hvqmt=e&hvrand=3304646516311258127&hvtargid=kwd-295564760380&hydadcr=19103_11276220&keywords=hdmi+switcher&sr=8-2-spons&tag=googhydr-20&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzSTc3NkxUQlVXOFBRJmVuY3J5cHRlZElkPUEwODI0NjM2M0ZITkw3MlFUOTNERyZlbmNyeXB0ZWRBZElkPUEwNDYyNjAzMURYV0RBNFlPT0tYTiZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=