Hi idf,
Thanks for posting your question on our forum. I'm afraid we do not currently offer any functionality that would allow you to create a subaccount for an employee that would given him/her limited permissions, but I have passed your feedback in that regard to our developers as a suggestion for future consideration.
If you need any further assistance with your account, please feel free to contact our customer support team by mousing over the "Help" tab within your account and selecting the "File Support Case" option.
-Mike