The reason I didn't add them was because some, like Servitor Crew and Turbo-Weapon Batteries, affect multiple stats and components and I wasn't sure how I could program that in without breaking the current system's way of looking up components and rules. If I do add it in, it will be similar to the backgrounds/packages and not affect the actual stats.
I'm able to scroll through the background screen when long packages are selected. Are you still having an issue with them?