However I do it, how and where is the commission declared in TT online?
Depends on how the issuer reports the distribution ... ask them how it will be reported.
Since you are asking from TT Live, for which you paid extra, Please contact a rep for personal guidance once you have the answer to the question above...
https://ttlc.intuit.com/questions/4124827-how-do-i-connect-with-a-tax-expert-in-turbotax-live
