Why is the 'time' scheduling criteria for the group definition defined in the general tab ? Will it not make more sense to add it to the 'scheduling tags' tab, so that you can allow greater scheduling flexibility to job definitions defined within the groups. For instance: If I had jobs that need to ...

If you're refering to the agentless implementation for version 6.3.01, then you will need a patch for your Control-M server. This patch is obtained from the BMC site or you can contact your vendor for a copy.