Open IM.

To search for IM users or IM groups, scroll to your user data, Conversations folder, or an item inside it, and select Options > New conversation > Search for contacts or Search for groups.

To search for IM users or IM groups, tap your user data, Conversations folder, or an item inside it, and select Options > New conversation > Search for contacts or Search for groups.

Select Options and from the following:

The available options may vary.