Scots-born James Dowson, 48 and from The Burn Road in Comber, was representing himself at a remand hearing - but he indicated that Bryson was acting as an adviser, which is known in legal circles as a McKenzie friend.
Bryson sat in the public gallery and was allowed to take notes.
Dowson, like Bryson, is awaiting trial on a number of charges arising out of the flags protest including taking part in an un-notified procession and encouraging or assisting offences.
A number of Dowson's bail conditions were changed on Tuesday and he has been permitted to have a computer for legal research and a mobile phone so long as it doesn't have an internet connection.
District Judge Liam McNally expressed concern at the length of time it was taking police to complete files in the case.
At a hearing in June, a court was told the files would be ready in a week but on Tuesday prosecution lawyers said they still hadn't been completed.
The case was adjourned for six days.