I've figured out how to do most stuff with the Script Editor but I can't manage to do more than 1 option for the PC to give. For example:

NPC: Greetings, do you want to have a look at my items?
PC (Option1): Let me see what you have
PC (Option2):No thanks

I can't figure out how to add a second option. Please help!

You mean dlg editor right? not script editor?

Alright, assuming that HdVaderII is correct with it being the DLG Editor by TK102... I had some issues obtaining it, but TK eventually sent me a .zip of it that worked.. But, anyway, back to helping.

What you do is you right-click on the dialog bit you want to add the reply to. In your case it would be the "NPC: Greetings, do you want to have a look at my items" bit. In the drop menu, there should be the option to "Add Reply". Click on that and a new reply should appear.

If it doesn't, there's something screwy going on.

I did that and it said

A illegal action has been perfomed

And then it says that windows has to close and the computer turns off! HELP!

Hmmm.... Do you have the .tlk file for which ever KotOR you're modding?

Otherwise, I have no idea how to solve this... might want to try e-mailing/PM-ing TK102 with your comp's specs and the build up to the problem.

Yes i do. I'll PM TK102 and sort this out