So.. what I'm looking for, is a way to implement "Collections" in the Main Menu.
In many games you can find this kind of system yet; the player collects various items, cards, runes (w/e) during his adventure.Â
In some games every collected Item gives a permanent stat/bonus. In other games you need to complete a Collection (a cathegory), to get a bonus. Again other games might have Collections just for the sake of collecting (and completing).
What I imagine now for the RPGMMV is an own menu for collections where you have empty fields and "???" (or sth like that) in the description. And once the player has an item which is part of the collection, the item's icon will be displayed in the empty field and the "???" will change to a text, the game dev will choose (like via item note tag).
If possible, even with the opotunity to make that item NOT appear in the normal inventory, as it will go directly into "Collections". However, alternatively one would just set it as a key item. Would be fine, too.
For better understanding, added an img from RO2 of its Card Collection (inside the Spoiler). Just as basic example of what I am looking for.