Okay, so you are telling me that the current (absence of) shortcut is intentional.
No, im telling you its intentionality is logical.

By whose logic - yours?
On day 1 of EA, cantrips were creating surfaces. Sounds perfectly logical, because it's Larian's game, right? Yet they removed it later. Illogical? Are they contradicting themselves? Do they admit that not all of their decisions are good? What a shame it must have been.
And so far we still didnt seen litteraly any signs for intention to change that. O_o
Signs from Larian? Pray tell, how do you become aware of their plans ahead of public releases? This knowledge will benefit the community immensely, I'm sure of it. Unless we'll have to ******** Swen's ****** for it, of course.
Mind you, "Mark As Wares" shortcut was also absent in the first EA version, yet they added it.
I will not claim that i remember ... but im quite sure im marking items as Wares for very long time by now ...
And this article:
https://gameranx.com/features/id/21...uttons-features-the-game-doesnt-explain/Makes me believe it was either added in one of most early builds ... or it was there from the start.
(Second option seems more probable)
You either have next to nothing competence in English, or intentionally twist and mis-interpret my words. I don't know what's worse.
The "Mark as Wares"
functionality was available since day 1, via item's popup menu. I never contested that. However, the [Shift + LMB]
shortcut was never mentioned anywhere. Although, after a 1 min research, it appears that it was also available from day 1:
Reddit. Note that the comment about having a similar shortcut for "Send To Camp" function has 5 upvotes, as of now (and no, I didn't upvote it, I don't use reddit). Clearly, I'm not alone in this.
Because of that, it took me more than a year to discover it, and only by accident. Why it has been done so? Don't bother answering, it's a rhetorical question.
For the record, the article you linked doesn't mention the shortcut either.
Also, I've never asked for the "retrieve it with single click" part. This is purely your invention.
Uhm ...
<snip>
Im glad i just invented something that has ben in this game for more than a year ... that prooves i will learn to travel through time.

Hope it will be soon.

Why your picture shows a random chest, when you yourself was talking about party stash? Here's your original line:
I mean if they would want to allow us to send our whole inventory to camp by single click ... then retrieve it with single click ... and then sell it with single click ...
If the first part explicitly mentions the camp stash, why you are now pretending that the remaining part of the phrase is related to something completely different? That's not how sentences are built in English. Not to mention that I see no purpose in retrieving the entire camp stash in one click. When it happens, it's a disaster.
You can't follow your own train of thought within a single sentence? Or anything goes when you want to play smart alec? You have a lot to learn, first. Right now, your attempts make you look a 12 year old. And arguing with a 12 year old is, well, what was that saying about pearls before swine?..