Dynamically produces a row of portal cells for Portal:Graphic Novel Abilities (abilities shown in Episodes are not included).
start= to specify the article number for the first cell in the row (first cell on the first page is 0, first cell of the second row of the first page is 4, first cell of the last row of the first page is 8, first cell on second page is 12, etc.)
lines= to optionally specify the number of characters before adding an extra line (default is 50).
Blank cells/rows will be suppressed automatically. Incomplete rows will be centered automatically.