One Bridge, two Lights: How to create the following simple mode and make it work?

[Uclaby7]

One Bridge, two Lights  

Question:  How to create a mode where one light senses motion, turns itself and other light on.

Similarly, other light senses motion, turns itself and first light on. 

Is the above attainable?

[TomMac]

Yes...but you really have to understand how modes and rules work...

you you have two lights A & B

in one new custom mode ( cause only one mode can run at a time ) start off with if A senses A turns on ... Then save the new mode.  Go back and edit it to add the following rule A senses B turns on.

Then add the opposite....as a new rule.

when done it should be like;

A senses A on

A senses B on

B senses B on

B senses A on