Essence stash tab - how to put on sale only specific items?

As in Title. When I make the tab public and set price for only one item, I start getting billions of whispers wanting to buy the other essences.

Obviously, I do not want that. Is there any way to put on sale / indexing only specific things from the tab and leave the rest? Otherwise, it feels pretty lackluster to have a special tab for essences, while essentialy (pun intended) being unable to use it for selling essences.

Any insight? Is this a bug, a feature, any way around?

I haven't done this personally but have you tried something along the lines of putting "Every item same price" in the tab drop down setting, then setting a ridiculously high price there, and setting manual override prices on the essences you actually do want to sell?

Tried that, does not work. People still whispering, offering ""reasonable price" for things I do not wish to sell