Hi, thanks for the idea. It is on the wish list. Apologies for the delay.
Cancel motion sensor actions (previously Suspend motion sensor) can be added to for example a dimmer switch. Then when using the dimmer switch it will “cancel” the motion sensor actions. That way the motion sensor will be disabled until there is new motion, to prevent it from interrupting the dimmer switch’s scene.
It could be possible that this option works with two motion sensors as well, but that is something we will need to look into and add support for in Hue Essentials.