When using speed ups and adding on resources from items within the game, by default your lowest valued items are at the top of the list meaning you often need to scroll all the way down to reach your biggest speed ups or highest values of resources when looking to complete researches, upgrade buildings or train troops. This can be time consuming and somewhat frustrating.
There is however a way of changing this!
You can go to More> Options> and scroll down to “Reverse Item Display”. This will reverse the order of your speed ups and/or resource items meaning your biggest values will be at the top of the list. This is much more useful especially as you grow and researches and constructions start to require large quantities.