Hi
trinsic, welcome to the forum.
In regard to your question, first of all, I think you are referring to "console commands" by stating "in game engine command line," but please correct me if I understood wrong. Considering it's the console commands that you enter during an ongoing game-play, it wouldn't be possible to achieve the effect and result that you are seeking. However, if you give more details about what exactly you plan to achieve and create, we may be more helpful in the the easiest practical ways to achieve such targets.
In order to work on NPCs, as long as their appearances concerned you don't need scripting, but you would need to use software like Photoshop, or Autodesk/Maya, or X-Ray SDK, or possibly a combination of them. But if you intend them to behave in a certain way, then, yes, you would need to input a relevant script (beforehand) as to what's expected of them that would instruct the engine accordingly.
STALKER uses a scripting language called LUA. As you'd appreciate, it will require a significant amount of time by any standard and it seems that you'd prefer a quick, shortcut solutions (as far as they are possible of course.) So, I can recommend that you check this STALKER MOD Portal site, it may not be as extentise as you might like, but it may answer a couple questions on som epre-set type script pieces that you may find useful. just follow the links as you'd wish:
http://sdk.stalker-game.com/en/index.ph ... MOD_portalAnd if you detail your project and the targets that you want to achieve, we may be give more specific answers.
Hope it helps.
