Various questions about classifieds on Buddypress

Hello,

I'm working on a project for a client with Buddypress & the classifieds plugin.

- Is it possible to change the custom post type of the classified to insert some custom fields like "color", "brand", "size" etc.

- What are the search options within the classified page? Is this just the search widget to search on a text string? Or are there filters that can be applied or at least a drill down trough the categories?

- Is it in any way possible to "save" an interesting classified as a "favorite"? So that I can view them later faster.

- Can I limit the number of media that can be added to a clasified to a maximum of 5 per classified?

I realy hope you can answer these questions.

Thank you!

Kindest regards,
Steven