DocuSign's support page for Transaction Rooms is very comprehensive and include a number of videos and how-to instructions that will handle most needs. Some of the most common questions covered are:
Helpful Videos
Setting/Preferences on Your Account
Add Email Conversations to a Transaction Room
Articles
Working with Checklists in Your Transaction Rooms
Sign a Document with Two Signers who Share the Same Email
Importing Documents from zipForm to Transaction Rooms
See All Support Material: https://www.docusign.com/support/transaction-rooms