>>2206
It's pretty simple, yeah. Main things you want to know are
1. The Repack on Sukebei Nyaa has most, if not all the mods and things you'll need to make most, if not all the scenes work
2. You will want your Koikatsu folder close to the root directory otherwise your male/female character folders won't load
3. CTRL + T opens the timeline mod that lets you start or stop or adjust a scene
4. F11 takes pictures
5. CTRL + E opens the recording mod so you don't need to record the game using third-party software
6. To load a scene, go to the menu and click 'load'
7. To change characters, go to the 'work' menu and click on the name of the character you want to swap out. You can identify which character is selected by the white line over their face and their name being highlighted in green in the 'work' menu. Just note that you can't normally change a female actor to a male actor or vice versa and that some body (vagina) types don't have the proper 'bones' to work with the scenes, so you might also need to mess with the character cards to get them to function properly. Even then, you also need to make sure they are within the acceptable height for the scene to work otherwise it'll look janky, but you can also adjust actor positions and change character heights to make it work.
8. You can find more than ten thousand free scenes in 4chan's /h/'s Koikatsu general in the links in the OP, but I'm pretty sure a lot of them aren't animated. Still, really good for showcasing cards you've made I think.

Though, once you do get the hang of it, being able to see your favorite girls get thoroughly fucked and snuffed is so hot. Truly worth the effort.