Fix an oversized panel by splitting it
Split an oversized panel in the design portal so it fits the board and is included in the layout.
To fix an oversized-panel violation, note the panel's ID from the violations list, find that panel in the design portal and split it into two panels at a chosen width.
Once the panel fits the board it is no longer flagged and is included in the board layout.
A board layout violation can also be corrected by changing the panel's grain direction so the panel fits the board, in addition to reducing the panel size.