Supress domain at access point

[#1]

Hi all,

Is there a way to let users make login at access point by username only or both domain + username?

Example: Login at Access point successfully with:

     My User Name and My Password

     My Business Domain + Username and My Password

Thanks in advance

[#2]

For me to suppress the domain at access point login at least will be great.

Does anyone have an idea how can I do this?