I've been working on this for at least 30 hours already in the past 4 - 5 days and so far it's looking pretty good. The major difficulty was to make a.. kind of unnecessary editor script which automatized everything about the pause. You set up an amount of pages, and each page has a position and a set of tags containing the options, then it automatically instantiates it in edit mode or destroys whatever thing that isn't part of it, auto assigning it to a list of classes in the inspector which control the text of the button. You can set up the separation of each type of option and also each graphic that is contained in the options + some additional graphics per page that you can add manually are auto assigned to a list that controls the transparency of the pause menu for the transitions of pausing and resuming.