The title is pretty explicit. The recommended item list should be something alterable, so you can take the items you plan to build. There are different ways I see it could be implemented :
-Pages : You choose a set of items at champion selection, like masteries and runes.
-By character : You can create a list of items for a specific champion out of game and when you play this champion, it loads the set automatically
-In game : You can drag and drop items on the list in game, and rearrange the set to fit the actual situation.
So what do you think of it all. Should it be added to the game ?