Brandon,
First, I think I gave you some bad JS. Update the first part of your code with this:
var CHILD_RELATIONSHIP_NAME = 'Experiences__r', // Replace with the name of your child relationship<br>
CHILD_FIELD_NAME = 'Order_Number_Show__c'; // Replace with the name of the field on the child relationship you want to reference
And replace
if (record.Order_Number_Show__c === true)
with
if (record[CHILD_FIELD_NAME] === true)
In that code, you will want to replace ‘Order_Number_Show__c’ with the API name of the “Show Order Number” checkbox field you were referring to earlier on your child relationship. Does that make sense?
Thanks!
Emily