One of the most requested features is a proper glamour book that would catalog each item you've obtained and let you freely change your glamour to those items without having to keep the items around, being effectively limitless as opposed to the current glamour dresser with just 400 items.
This has been an ongoing discussion for actual years at this point.
Live Letter XIII back in 2014 had Yoshi-P say this:
Yoshida: A plan for a weapons and armor compendium has come my way. The plan is to allow you to read about the origins of each weapon and armor after you have completed the series, and we would like to implement this as well.
Live Letter XVI had this as a response:
Q: Is there any update on the weapon and armor log?
A: We've currently finished off a lot of the details, but we have to plans for implementation, we've been estimating the amount of work for each. The first idea would simply have players building a collection of weapons and armor, while the second idea would allow players to read the lore surrounding the gear they obtain. However, this data will affect the player data used in real time, so we are carefully investigating this at the moment. Next week we will reach a conclusion and proceed for actual implementation, but if we decide to go with the first idea it will be implemented in patch 2.4. In the case we decide on the second option, it will be implemented a bit further in the future.In any event, we've progressed quite a bit on this and we will have our verdict soon enough.
Then in another Live Letter in 2015 we got this as another answer:
Q18: Do you have plans to implement a feature, such as a book that records items you have obtained once, and you can drop that item but still use it for glamour? With this feature it’ll free up the inventory space.
A18: Yoshida: We have no plans for this. We would increase the inventory space if this was possible.
Very recently we got this answer:
Q - We have so much equipment in the game but it feels such a waste because it's either we equip them or glamour them. Is there another use for those items like having them registered as a glamour entry in a catalog? By the way, my glamour dresser is almost full.
A - This stabs YoshiP hard because it digs up the old idea YoshiP once had
OOF. Ouch, this definitely hurts as you're bringing back the old idea of a glamour log... I mean, we wanted to do so! We even had the text and all ready!
We cannot include them all because it's too full and the data couldn't handle it...I mean if we can somehow make it work it'd be nice but....we're definitely out of space to save such data....we definitely want to realize it one day but....yeah, I'm sorry.
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So what are the possible solutions? I'd particularly like to hear some responses from people who might have the technical know-how in server/data management. We don't know how they do it on their backend but I'd still like to know what's actually within the realm of possilbiity.
1) Would limiting the glamour book to only be available at the Inns like the glamour dresser itself reduce the server/memory problem?
2) Would making it work through an NPC like how the Calamity Salvager functions reduce the requirements?
3) Would having it function like the aesthetician reduce the data problem across the server because it's a "specific instance"?
I am by no means qualified or understand how it could/would work but would it be possible to setup the glamour book to function like the Aesthetician on it's own entirely dedicated server, that is exclusively used to store the glamour book information of the players so that there isn't any load on the "world" servers as you are actively playing.
Getting the items I imagine would just be a yes/no database behind the scenes, then you could go into this "instance" like the Aesthetician to set up your glamours, say per job, maybe even multiple slots. Then once the server knows you've obtained the items this particular instance could then save the loadouts CLIENT side. That way the changing of the glamour plates could be anywhere without actually impacting the "server load" because it's just on your end now.
From how Yoshi-P keeps describing the problem it seems to be a memory issue / server issue if everyone was to do it all the time in the open world so they can't handle it, but how it would function if the items themselves were accounted for like the Crafting/Gathering Log which just has a list of items and check marks to say you've done it. Then you could go into the area to actually "process" it all and set it all up from that list.
The game does store some things client side, so is there really no way to implement a system to help circumvent all the server/memory issues by making it more independent to the player? For example it wouldn't be accessing the entire glamour book in the open world, it would only access the data for the specific plates you created that was stored on your side. And it would only access your whole glamour book when you go into that specific zone/server to do it.
I can't imagine it's "impossible", but maybe they just don't have the resources/time to figure it out...