I’m assuming that this will be at your parish, correct?
- The local bishop will be the celebrant (unless he chooses to sit in choir and gives that honor to the visiting one).
- the visiting bishop will typically wear an all white mitre & no crozier.
- The Bishop will sit in the chair of the main celebrant.
- To the right and left of the Bishop will either be two Deacons or the pastor and a deacon.
- The visiting bishop and all other clergy present will sit in choir Vested. However, the visiting Bishop often is given his own chair (with kneeler in front if he’s not concelebrating) placed in front of the priests in choir. Depending on the layout of the sacarsity, this could be on the same side or opposite side of the local bishop.
- because it might get crowded up there, it would be best for all chairs to be facing perpendicular to the altar.
Here is a quick diagram of what I’ve seen before for seating:
x
x
x
x -------------------------------------------------------------------------------------------------------------------------Y
z deacon -----------------------------------------------------------------------------------------------------------Y
z Bishop-------------------------------------------------Altar-------------------------Visiting bishop —Y
z Pastor or deacon---------------------------------------------------------------------------------------------Y
x = servers / MC dedicated to helping the bishop
z = servers dedicated to servicing the mass
Y = other priests & clergy
z and Y could be flipped too. But with a visiting bishop, I would place the other clergy with the visiting bishop
NOTE: your diocesses should have a guide for this somewhere that they can send you. All dioceses have dealt with things like this before and they can give you the norms for your diocese.
God bless