Boarding was called in Sequence at gate 143 at MAN this morning. As was the flight at gate 141 after that. both seemed to work well. Gate 143 area is only really big enough for 2 lanes (Groups 1,2+3 and Groups 4+5), but sufficient space to allow those in higher groups to pass those in lower groups, i.e Group 1 to pass Group 2 or 3. Gate 142 poses more of a problem due to the narrow queues and the need to allow a thoroughfare for other flights, so for the time being, groups 1,2 +3 are called together.