Below is a link to my blog demonstrating how to build a layout for search based studies. Most bible software package are search based. They open with an interface that requires a search. Logos opens to a home page and then is primarily pericope based using the passage guide and exegetical guide. This is great for expository study, but there are times when a search based study is more appropriate. In this example I search for the greek word phileo. I hope this provides some ideas that you can incorporate into your use of Logos 4.
http://biblesoftwarenewsletter.blogspot.com/2009/11/logos-4-search-layout.html