Scroll down to see how to do this in Symphony 1.5
In Symphony 2.0:
Use the quick filter to find specific chats, inside or outside a folder. As you type, your chat list will reveal matching chats. If a chat appears in a folder, click to expand the folder and open the chat.
Figure 1 Type to filter your chat list
Note: In Capital Markets mode, quick filter is available in the All and External workspaces only.
In Symphony 1.5:
Use the Filter List at the top of your left nav to find specific chats, whether they’re in a folder or not (Figure 1):
Figure 1 Filter List
Matching 1-on-1 chats, group chats, and chat rooms will appear as you type.