I'm using a custom list button to create records. It's working, but when a new record is created and saved, I need to refresh the full page to see the new record at the related list. I wish I didn't have to refresh the page to see the new record.
Here's the URL Hack I'm using:
/lightning/o/Related_Contacts__c/new?defaultFieldValues=Contact__c={!Form__c.ContactId__c},Contact1__c={!Form__c.ContactId__c},Form__c={!Form__c.Id}&navigationLocation=RELATED_LIST&backgroundContext=%2Flightning%2Fr%2FForm__c%2F{!Form__c.Id}%2Fview