We have multiple teams that collaborate on projects, but work on boards within their own workspace. While we can mirror specific columns when we connect the boards, we cannot mirror in the Item Name (first column). We do not need the name to be different in these cases - its the same item name and some of the same mirrored columns.
When we asked for support on this, we were told we could make the mirrored item from Board A, the 2nd column on Board B, but if we needed the first column/item name on Board B to be the same, we would need to manually re-type it. That seems to defeat the benefit of mirroring in instances where the item name is the same.