How to add shop in shop or how to fee in shop

Hi,

If i understand you right, you already using the marketplace feature but you want to also give some fee to another account, right ?

HikaMarket does not support multiple level of vendors and a product can just be assign to one single vendor.
The multi-vendor system is already using quite complex algorithms and that's why we didn't add the support of sub-vendors.

So if you want to do such process ; you will need to use a custom plugin but I admit that it would be a complicated development.
But the idea would be to create a subsale for your special vendor and set the vendor total depending his rate and what's left for the shop fee.

Regards,