Lisselli

You cannot add perk trees. The dev team added them through the engine.. it's always been you'd have to completely modify and existing perk tree if you want to add a "new" tree.

Re-installing/updating the CK in the beth launcher will fix this. Only thing is you need to move back all source files to where they belong. Save your CK inis before hand. In fact back up your entire scripts folder.

I spent most of the weekend working on a mod that lets you decide when you want to start Dawnguard and Dragonborn.. I was unsuccessful with Dragonborn(the trigger is well hidden, nice one Beth), but Dawnguard was pretty easy. Uploaded it, and the first comment I got was some one linking to a mod that does the same thing and then lists all the stuff that mine didnt do. Comments like that are basically deterrents. I didn't get anymore comments or downloads after that.. I had another much larger project I was taking a break from which was basically an overhaul of dungeon spawns(I was adding new ones). However the comment was so demoralizing and discouraging that I dropped the project because if I spend several months making 123 dungeons move "lively" just to have someone say another mod gives 100 more options than mine.. then no. So I took my mod down, and walked away from the modding. I feel I am useful in other areas, like touching folks how to script or something.

Never gonna happen.

Err no no, this wont "shorten" SSE's longevity.