On one eBay account (EBAY0), if you list on different marketplaces (EBAY0_DE, EBAY0_FR, ..), it would be nice to be able to set different Max Listed Quantities for an item. This would be particularly useful to use the eBay selling limits efficiently if you sell mainly in your home country but also want to start listing other countries. It also helps to keep your conversion rate high by limiting the listed quantities in countries that have low sales.