How do I let customers register to specific subshop and customergroup

Shopware 5 International (English Only)
1

I am building a webshop for a client of ours. He wants a main shop example.com and a subshop example.com/subshop for a specific customer group. He wants the people who register to the subshop that they are automatically assigned to the specific customer group. 

What I have done so far:

  1. Created a customergroup
  2. Created 1 subshop e.g. example.com/subshop
  3. Assigned the customergroup to the subshop in the subshop options
  4. Activated the option “Customer scope” for all shops

Problems:

  1. The subshop page exists, only when I click the account button it links to example.com/account and not to specific URL like example.com/subshop/account or something. This is what I would expect after activating the “customer scope option”. Now the customers register to the main shop instead of the subshop.
  2. I cant find any option to let the customers assign to a customergroup by choice or automatically, is there a way to let customers do this without to have to configure this in the backend.
2
  1.  Have you correctly configured “Virtual URL” for each shop? 
  2.  Handlers are registered at the following address    /register/index/sValidation/ H         I think you need to follow the same path…