» Mon Jun 18, 2012 2:26 am
Its not just you... its becoming a http://www.gamesas.com/topic/1344316-looking-for-perk-trees/.
In either case, I have played with them for quite some time as well, and I've come up empty, just like everyone else. Editing a pre-existing skill to what you want seems possible, but I wasn't looking into that, specifically.
Regardless, what little that I have found is that as soon as you enter the Actor Values window, it marks the first Actor Value (AVAbsorbChance, I believe) as changed, even if you touch nothing else but the "Cancel" button (it'll toss up a warning that you changed the Actor Value, and ask if you want to save changes). This in itself doesn't harm anything, other than leaving your mod dirty.
However, if you try to create a new actor value, then you aren't given the option to specify it as a skill (skills are sorta-kinda hardcoded anyways, in a way) thus have no way to create a perk tree.
If you try to duplicate an existing skill, you CAN edit the perk tree of the new Skill. However, doing this corrupts the data somehow. You won't be able to load the .esp if you exit out of the CK because it will crash if you load the mod, and the game will crash at the title logo. The only way I have found to restore the mod is to clear ALL Actor Value changes in your .esp before you load the mod.
At first, I thought that perhaps the skills menu was set up in a .swf file like some of the other menu items (Data\Interface), which to me might have explained the problems... but it looks like its set up with .nif files (at least in part, Data\meshes\interface). It may simply be that there is some other "thing" that needs to be edited as well, or it could have been bugged with the public release, or maybe its just something that we weren't meant to really mess with, for whatever reason.
Some people have taken to alternative forms of adding "skills" it seems. Although displaying the skills/perks may not be as nifty as the skills menu, the apparent half-hardcoding of the actor values probably would have made this different form of keeping track of them necessary anyways.