Presently, the default in Grouping Workbench is to "Include All" items of the search. The dropdown list to "Exclude All" or "Generate" lists the two options below each other.
For anybody in a hurry, or anybody over the age of 40, it is too easy to click "Generate" when you intend to "Exclude All." Our team has inadvertently generated POs this way and then had to clean them up.
Solutions would be to separate the two options farther apart or toggle the big button on the menu row depending or simply swap the two. See screenshot attached for illustration.