This feature request has been in the forums for years.
It is simple usability features like this and more addons, that will take Marketpress to the next level.
It's kinda like Apple products, if WPMUDEV can really focus on delivering Marketpress as the All in one ecommerce solutions, it will do wonders.
A little premium 'addons' section would also encourage third party development solutions.
Just my 2 cents.