Yes and Yes!
Every one of your email campaigns has a details screen that has open counts, streams, downloads and private links. You can filter the recipients, eg. Show me who has not streamed -- and you can easily initiate a follow-up campaign.
To access, hover over Email on the top of your screen and select My Emails.
Find the specific email you are interested in and click View Email Details
**Your dashboard activities and confirmation emails also link to these pages.
Check multiple contacts in the left column and use the Batch Follow-Ups feature or click the Send Follow-Up Email link for a specific person. You will get redirected to then send the follow-up email out.