With WebHostingDirect you can create several accounts under one
login and easily switch between them after you log into the control
panel.
Account Info menu has two items for multiple account management:
Choose Account and Add Account:

Choose Account
To switch between accounts, select Choose Account in the
Account Info menu. You will be taken to the page listing
all your plans:

Click the Select icon for the account you would like to
enter.
Add
Account
To create a new account, click Add Account in the Account
Info menu. You will be taken to the page listing all the evailable
plans:

Click the Select icon for one of the listed plans.
This will begin the account creation wizard, which is identical
to that in the signup procedure.