All sharing actions can be performed in the sharing area for a VoiceThread. You can access the sharing area from several different places.
From the VT Home page
Note: You can select multiple VoiceThreads, and then hover your mouse over one and select “Share” to share several at once.
From the Create or Edit page
From an open VoiceThread
To share multiple VoiceThreads with a Group at once, check the box next to each VoiceThread you want to share, and then click on the share button at the top of the page.