Thanks a lot for your answers, I really appreciate it! For 1d, this is possible right, just need some development? For 1c, I do not have to do it manually for individual user, it will automatically happen once configured?
Thank you for 1e, the developer told me it is not possible unless I do one by one and I am like, that does not make sense....
Also, I am not able to login to back-end , I emailed him several times and he is not responding... Can you help because I hope to launch my site before Black Friday sale!