Request/Suggestion: Marking items as unrecycable

Good Evening Players and Mods.
I want to suggest a feature that i think would benefit the Game.

I often use the recycling feature after Dungeons and Quests to get Materials for crafting or selling and you can easily lose the focus on items that you wanted to keep for later or other classes.
And banking them either in the Chocobo-Bag or on one of your retainers takes a lot of bagspace from the already limited Bagspace in the Game.

I either wanna keep them in my Arsenal, but since every dropped Equipment will automatically be put in the Arsenal, it will soon become not overviewable anymore during recycling.

Now my suggestion:
You should be able to mark items as not sellable/recycable (preferably by right clicking it and choosing a tab that says something like "mark as important")
It would make things way easier if those marked items does not appear on vendors or recycling anymore :)

Thank you