[Sharlikran]

There is no button or automatic feature to install a mod and all its libraries. Also older libraries and mods in the discontinued category will not show up. So simply don't use mods that are in that category. They are not guaranteed to work anyway. Other then that you use the same feature to install the lib as you do an addon.

Say you want to install Quest Map, so in the search box for installing you type that. Then you want to install LibQuestData, you type it and it should appear, click install.

I'm not at a computer so I can't get screen shots but it is fairly straightforward. There is something to click on for your list of installed mods, but to install more or search you have to click on something else. Without time to get a screen shot I can't explain it much better but if you open minion it should be obvious. Maybe you just haven't clicked on this to see what they do yet.