Teal, the value editor is built into v1.0.2 dev. edition. It is not a separate program. Basically, it is designed to allow a power user of Sins Editor to add or remove values and entries that are used by the Sins Editor autocomplete system that is present in v1.0.2 and will be present from that version onward. It also lets you associate files to open with a certain value. For example, something in an entity file that references a research subject, you can associate with that research subject file.
Of course, using DefGen.exe (which will be included as a tool in v1.0.2), you can generate a complete list of entries/values for whatever mod you want (the files have to be in text format). The generator will automatically associate a value with a filename, if such a file exists.
I will include an entrenchment values.def which should contain 99% of what anyone would need.
The DefGen.exe program was just for my own easy generation of values.def files used by Sins Editor. I released it because I thought people would find it useful even if they do not use Sins Editor.
Kitkun, yeah, I tested it on an entire folder as well. It opens files just fine, although with that many files, it can take 10 seconds or so to open everything. This is a limitation with the .net tabcontrol. I can make it a lot faster by limiting the number of tabs visible at a time and dynamically adding and removing tabs as the user scrolls through tabs; however, I am hesitant to even bother, since I cannot see a time when someone will be editing more than 10-20 files at once.