Add Rules for Logs to Smart Groups

In searching for a certain Type of Log or Log Entry, the ability to add a Smart Group would be advantageous. I have created a Log Type for Design Standards. The Design Standard is linked to a Client and contains specific details about that client's choices of color, font and other aspects of their brand.To compile this information it helps to know which Clients already have an established Design Standard. A Smart Group to search for Clients with established Design Standards would serve this need, particularly since the Search window doesn't include Logs.