Maybe... I can help?
I've looked at Java code, think I will most likely never write anything original, probably not even modify any. I used to write BASIC code, in multiple versions. Been working with computers since 1978. I used to help help people with technology to the point where I was told, "That's not your job." But they didn't know how to use the development database, Word, Q&A for DOS, fax machine, copier, and so on. Finally I did it for a living -- tech support for over 11 ridiculous years.
So in many ways I am an advanced user. With me, troubleshooting is not only training, but something that I really cannot
avoid doing.
Here is my point of view:
The Hobo Marketplace functions
critically differently from all of the things listed in KoLmafia's Coin Masters. For each of those places, I see a single question to access the markets listed there:
Can I simply go there now? The only other question is regarding using the functions allowed by each market: Do I have currency for this place?
For the Hobo Marketplace, the answer to this first question is (as I see it) "No." The answer could be longer. "No, unless you are at this very instant able to meet these criteria and do this long list of things, which list includes
using multiple adventures. That leaves out the "simply" part of my question above. Whether short or long, the answer is still "No."
None of this has any
causal relationship with documentation written by a user of the program. If "somebody told me" that I can change any aspect of a font in ... let's say Word for DOS 5.0 ... by choosing a menu and then a thing within that menu, and yet I found out I could not
make that font sparkle, well I feel it would be entirely unreasonable for me to demand that it happen anyway. In general,
words that somebody said do not create reality.
So if I were supposed to help write or edit a book on how to use Word for DOS 5.0, and I became aware of wording that said or implied that
anything could be done by choosing a menu, I would advocate changing the wording to better match reality.
"All aspects of the font can be changed from within this menu." That is kind of far-reaching.
"All available font changes are found within this menu." That describes the actual situation more precisely.
"Anything can be done," is different from, "Any available thing can be done." I'm sure some people would be tempted to say, regarding that "All aspects..." statement, "Oh, people aren't actually going to think [or say]...." Come on, get real. Think about it. People think all kinds of things. And I know from extensive personal experience that they will (at times) take a single thing, with the way they view it, and
insist that something else must be true. Oh. My. God. How many times have I heard things like, "No! This DSL modem has worked since I got it seven years ago. So it CAN'T be defective!" Uhhhhh. How about, "My bookkeeper [accountant, CPA, mother, boss...] TOLD me QuickBooks will do this, and you HAVE to make it work for me!" No. Not only was this person
wrong, but this involves things all of us in tech support are specifically and clearly
prohibited from doing; it won't do it, and I can't help you try to beat it into submission, either.
Qvamp [I feel like Larry in the guild, waving at you. "Hi!"], it seems that you are insisting KoLmafia
has to work a certain way because of something someone wrote, and the way that you interpret what was written. I think that you have a good grounding in logic. Am I right, or close? I mean about your insisting how KoLmafia must work. If you think about it, might that be how it is? Or put differently, do you see why it might look that way to me?
So. It seems to me that KoLmafia's Coin Masters
cannot work for the Hobo Marketplace. I don't mean I believe it's somehow impossible to modify Coin Masters so that it would work for the Hobo Marketplace. I wouldn't be at all surprised if the KoLmafia team were able to do that. While I have a greater understanding of computers (and technology in general) than a lot of people do, many functions of KoLmafia pretty much could be magic, as far as my understanding of it goes.

And the developers are magicians -- at least figuratively.
However, I think adding the Hobo Marketplace to Coin Masters is a bad idea. First there are the complicated requirements for reaching the Hobo Marketplace. What if I, the user, have NO hobo code binder? What if I have a binder and no codes? Three codes? Fourteen? How many adventures will it take to reach my goal within the Hobo Marketplace? If I get lost, it can take more. If I get lost again, even more. If I get lost a third time.... In KoL, getting to the Hobo Marketplace is not simply a matter of "click, and you're there." Or even "/go hobo mark" in the chat pane. I feel it would be important to separate the Hobo Marketplace from those other "markets." So if access to the Hobo Marketplace were added to KoLmafia's Main Interface, I think it should not be part of Coin Masters.
If anyone read any of this, I do hope it can help.