In case you haven't noticed, there is a new Search Editor in the 0.6.0 beta that allows you to save your searches (and to run them from a separate dialog if you want). You can even run a group of searches in order.
Some sample regexes are loaded if your list is empty (or if you import the examples/search_entries.ini file).
You can export and import entries. So it might be interesting if you post searches you might want to see in the default examples files, and also searches that others might want to import.