As title - I think it could be very helpful to see the username of a PayPal account when you go to a Summary for a transaction where you have sent money to that account.
An example (not a real user) - Company B is on PayPal and can be sent money.
Their username is "@companyb" and their display name is B Co.
If I go to the summary for a transaction I've made in the past to this company, I can only see their display name "B Co", which may be the same as a different user - not their unique username "@companyb"
If I want to double check after making a transaction which unique account I sent the money to, I currently cannot.
