That happens to me if the model viewer is opened to long. Just constantly save and make a few backups. The next release should fix the issue. hopefully.
Unless you have a USB Gecko then that will not help you. Even so you'd need a combination of brawl box editing and codes. I'm also going with impossible though. You'd need to add a way to view the models on the CSS along with the file size issue. The file size issue aside adding some type of model viewer would be near impossible without major editing. THEORETICALLY it's possible, but not with what we have now.
You can use 3F to FF, so you have an option of using 40 to FF. But 3F should be fine unless you want more slots. Make sure that your clone id matches the slot id.
You never cease to amaze me. Well, you and all other developers. I would love to offer my help, but alas I'm only capable of supporting you guys with words. Was that to much flattery, I think it was. So I'll end with what do you mean by "later on"?
Damn, I really got check the programming section more often. My info is somewhat out dated. a little off topic, but are you going to interplant your clone tool like how code manager was?
Dunno, but it sounds cool. But not to be a kill joy, there's no way to edit item effects and properties to make a "new" item. Someone please say there's a method that I've overlooked or missed, I would love to be wrong about this.