On the App-V Server one can examine which packages are in a connection group via the App-V server console UI. At the current time equivalent functionality does not exist in the App-V v5 client console UI. However, you can still obtain this information on the App-V v5 client using PowerShell.
The following PowerShell command returns all enabled connection groups and their members:
(Get-AppvClientConnectionGroup).GetPackages()
The following PowerShell command returns the specified enabled connection group and members:
(Get-AppvClientConnectionGroup -Name {cg name}).GetPackages()
where {cg name} is replaced with a group name
The following PowerShell command returns the specified connection group and members:
(Get-AppvClientConnectionGroup -GroupId {group guid} -VersionId {version guid}).GetPackages()
where {group guid} is replaced with a GroupId and {version guid} is replaced with a VersionId