Vendor default menu and vendor link on product

-- HikaShop version -- : 4.2.1
-- HikaMarket version -- : 3.0.2

Hello,

1.
What is in the configuration > Market options > displaying options > "vendor default menu"?
I could not find any info in the documentation or in the forum.
I have a multilingual set up with joomla menus for each language (joomla native multilingual menus).
What kind of menu should I choose (products - categories - vendor cp...) and should I chose it from the main site language or ... ??

2.
In the products listing page and in the product detail page
the vendor link does not redirect to the vendors listing menus
SEF should be .../fr/market/vendors/vendor-name
but both links redirects to .../fr/component/hikamarket/vendor-name?Itemid=####
What setup am my missing here? Or is this a component issue?

Thank you

Jerome wrote: 1 - It will be the default menu used for links to HikaMarket vendor pages from an HikaShop product listing or product page.

You are not giving me an answer to my question but simply writing "Link vendor category to vendor page by default" with more words....
Again, what kind of menu should I choose;
HikaShop » Products listing ?
HikaShop » Categories listing ?
HikaMarket » Vendors listing (does not list in the dropdown)?
or ... another type of menu, then which one should I use or create ??

Jerome wrote: 2 - It means that the menu ID is not a good one (not an HikaMarket menu)

Menu ID?
What and where is that setting, where should I look for this?