List products via multiple ID’s and or Keywords

I started using this your plugin recently and notices that I cannot list products using multiple IDs, nor can list products via a keyword. It would also be nice have control over the number of products you want listed, along with some search parameters, like rating, orders, price ect. I actually have to enter short-codes one at a time to build a list. The plugin works great but it is tedious and frustrating sometimes.