New ebay marketing feature

This is great that you guys added this. I use this feature a lot on ebay.  In order for me to use this feature on SD, I need the following:  

1 - being able to search/filter by guid "product" 

2 - able to select multiple items and change the discount or qty in one field and have it applied to all selected items

3 - ability to filter by ebay or store category or ebay parent category

On my racechoice account, I have 1000's of listings that may be offer eligable.  I want to send 5% off to all my products under my toys&hobby category as an example.  I need to be able to filter by that category, enter 5% in one box and have it applied to all checked off listings.