[Fenris447]

I'm not sure what exactly you're saying the problem is. The Artificer in the Community Pack is designed to follow the Artificer class and subclasses' design. Mixing and matching various subclass features is not supported by the rules of 5e. You'd need to use the editor to make your own version(s) of the subclasses to do that.

To elaborate: subclasses in 5e each have their own unique set of features that you gain as you level. The rules of 5e do not allow you to pick and choose features from different subclasses. You pick your subclass and that's what you get (aside from multiclassing, but even then it's still just one subclass per class). So if whatever channel you're watching is telling you to mix subclass features, they're telling you to not follow the way 5e is designed. That's fine, as house rules and homebrew are a totally valid way to play. But 5e in Hero Lab follows the rules; no mixing subclass features.