Adding apps to folders, add scroll bar with Alphabetical breaks (e.g. hyperlink to that letter)
When you're adding apps to an existing folder, you just get this long list of every app.
There's no scroll bar to quickly drag to an app that's a long way down the list.
If you want to add an app that starts with the T, you have to repeatedly click scroll through the list until you finally get there. And you might overshoot it and then you have to go back and find it.
It should have a scroll slider on one side that you can quickly drag and when you press and drag it highlights letters through the alphabet, so you can quickly and easily drag the slide to the letter T and find your app.