Rules, User registration, loop through other users with condition, set field value to 0 My configuration is the following :

Using D7

I have a node type called Items.

User with a node id entity reference field to this node can be affiliated to one of these nodes, four of them..

(So there is (x) Users who are affiliated to Node A, (x) Users to Node B.. C and so on..)

When registering new user has a "field_current_owner" (on/off), set by defaut
And choose his affiliation to one of these four nodes.

I want to make a rule that cycle through  other users affiliated to the same "node id reference" to have their "field_current_owner" switch off.

I am a bit confused with rules components.. someone could shade some light on my problem ? 

Should i made a component which turn any user with id different (negate) than registered user with condition regisetred has same node id reference
trigger event get field i/o to "off" ?

I am a bit confused, then when i make a rule with my component fields previously inputed, how can I make it cycle through my user list ?

I am a bit in the mist with this module, can someone please give me hand ? Even a hint ?

Thanks by advance
Assuming your Rules event is User Updated and you don't have hundreds / thousands of users referencing each of the nodes, 

Use the Action: Fetch Entity by Property [User&gt;Entity Reference Field] and give it the Entity Reference of the Updated User. This will give you a list called Entity Fetched.  


Create a Loop using Entity Fetched  
Add an action to the Loop (on the right) and Set a Data Value: [List Item&gt;Field&gt;Not Current Owner]
Under the loop, Set a Data Value: [Updated User&gt;Field&gt;Current Owner]


That will save each user that references the node. 

If you don't want that because of performance etc., 


You would create a Rules component and send each List Item in Step 2 above. 
Then in that rule component, have a condition that checks the user's Current Owner field is set to True, and have an action to set it to false.
Do step 3 as above in the main Rule to set the current user as owner.