Posting this on behalf of a customer. This feature would be incredibly helpful especially when dealing with thousands of deal records that need a contact association label. The current workarounds are very manual and inefficient, requiring an export of all deals, splitting the deals into rows for each associated contact and then reimporting the excel with the associated label. A workflow would make all of this so much easier.
This would save customers a lot of time and effort, so please prioritise this :')