EndNote needs to grow up into the full fledgedreference manager it could be. One of the ways to do this would be to make it so that one can have more than 10 search terms. I find myself continually contructing complicated logic patterns because I can only have 10 search terms. I need to create groups based on groups because of this.
If there were the ability to have more than 10 search terms, as you can with many other reference managers, one could have far fewer groups.