External Attendees from All Accounts

Much like this request here, it would be useful for my customers to be able to add External Attendees from any/all accounts to Timeline Activities. The use case is that they have many consultants and partners that will join client meetings, and it definitely does not make sense to add thoes as duplicate contacts to each client account.

Would be super helpful for my team!

This woudl be an amazing feature for my team - hands down the most frequent request I get.