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

Create a Transaction Room

Setting/Preferences on Your Account

How to Add Documents

PDF Editing

Add Email Conversations to a Transaction Room

Mobile In-Person Signing


Working with Checklists in Your Transaction Rooms 

Adding Documents

Sign a Document with Two Signers who Share the Same Email

Importing Documents from zipForm to Transaction Rooms

Setting up Your Profile

Configuring Notifications

See All Support Material: