Is this possible?

I'm using a Shelly with a bathroom light switch. What I'd like is:

• If the physical switch is off, the Shelly is always off
• If the physical switch is on, the Shelly can be used to turn off the light (and later turn it back on, let's say when motion is detected)

Right now it works great when the physical switch is on, but even when it's off, the motion detector triggers the Shelly to turn the light on. Is is possible to configure the Shelly, or use automation software, to keep the light off when the physical switch is off?

It's not a Shelly motion sensor and it's not wired -- it's using smartthings automation.

If you're right that it can be done with an automation system, I think the question would be how. Does the Shelly report on the state of the physical switch?

How? I'm not seeing that in WebCore.