As far I how I do it, it all depends on how many roulettes you have and are in your collection. If you have a ton, then Ii recommend doing it by Table Number. From there, use the Pictures tab to have all of the colors for that particular table. You can have up to 20 pictures for each item listing.

for me....I don't have a lot of roulettes, and try to limit them to one particular table or a few random chips for some. In these cases, I have each as a separate item.

I use the description as the final sort (you can have up to 4 sub sorts). In the description, the first words are: table 1, yellow or table 3 green. Since I have the description as one of the sorts (the last sort), if all is the same (i.e. casino name, denom (roul), city, etc) then the listing grid will show each of the tables together and have them then by sequential color.