Question: Is it possible to use `www.website.com/username(cpanel)` instead of:

`www.website.com/cpanel`

To access the cpanel?

Please suggest an idea.

Answer: 
Using username instead of cpanel after your domain name is not possible to access the cpanel.  

B'coz the name(domain.com/**name**) other than some predefined names mean a directory inside your domain name.
That's correct! You will need to use domain\_name/cPanel or domain\_name:2082 to access the cPanel. 

You can not access cPanel directly using username. There is no such option to edit the cPanel access URL.