First of all, thanks for an awesome piece of software! Goldendict ROCKS.
I have a few suggestions to improve it though!

1) When you add a new dictionary, automatically add it to a group called "New", or "Test" or whatever: I have dozens of dictionaries, and if I only want to see the entries in the latest addition, I have to either untoggle everything else, or manually add the new guy to my "New" group.
2) In my dictionaries, there are entries for:
- at one's disposal
- at your disposal
- at sb's disposal
- at his disposal
But when I type at disposal in the search field, Goldendict won't show me those. So I need to type disposal and skim the entire list to find what I need. Could you make that behavior optional? Like, typing "at disposal" or at disposal would result in different lists, Google-style? (I'm sorry, I know I'm not being very clear, but do you get what I'm asking?)
Thank you! Keep up the good work!