Thanks much, p.; there is not a hotkey for the new search bar, but I'll add that to my to dos.
Unfortunately for the moment there's no good way to batch import DOS games. I do have it on my list to implement, but it is most definitely a challenge. Haven't ever heard of M.E.A.G.R.E. before; I thought I'd seen them all.
Anyways, if you can get them in D-Fend, that's probably your best (and only) option for a mass import. I can imagine, though, there will probably be a few issues in translation.