For starters, it removes the dialogue wheel and replaces it with a good, old-fashioned list of dialogue options. Thankfully, I found this handy mod called Full Dialogue, which does a few very interesting things. I almost shot Dogmeat (and a few others less important settlers) because of it.
One of the first things that bothered me when playing Fallout 4 on my PC was the dialogue wheel. Certain additions are designed to work off previous mods, so you will need to know if you already have the required one, or if you need to find it. This tool helps you install, uninstall, activate or deactivate mods, as well as enabling you to quickly see which mods you have installed. As you've probably already guessed, Fallout 4 Mod Manager is a mod that will give you an easy way to manage all the other mods that you want to use.
Let's start out with the most useful tool to those interested in the items on this list.