I was planing something like that but never got the time to add it.
Was is on the list is to be added is the possibility to go to a item directly. like if you type "g23" will go to the text item 23 in category "g" but also a search for a subtext and it goes to that item.
If I get some time over I might add them in the version.
Btw. It is possible to open the language file in a text editor. Then you can search and replace text much easier. Just make sure you do not mess up the XML tags.
