Hi,
There is no mechanism for that.
The closest we have is HikaMarket frontend edition, which allows super admins to access all the orders from the frontend, or HikaMarket Multivendor, which allows each vendor to access the orders linked to the vendor from the frontend:
www.hikashop.com/extensions/hikamarket.html
Now, maybe with a well constructed mass actions, you might be able to set the vendor id based on the user group of the customer just before an order is created.
So maybe with HikaMarket Multivendor and mass actions, one per vendor, you might be able to provide such access, but it will be from the HikaMarket vendor orders listing, and not as a tab in easy profile.