Hello There,
This is very much possible and we used it every day in thousands of devices.
There is a option called command string on the device itself.
Here are the steps to achieve this:
1. Go to devices : Transparent login : There are three option ie None, Pb run , Command String, Select Command String
2 . You will get two more options : Commands and Authentication
3. Under the text box of Commands : enter "enable" without double quotes. and under Authentication text box enter "Password:" with out double quotes, But remember the value of authentication will depend on what you actually see when you issue enable command on the target device, The exact string should match with what you see on the device. in some cases you will see "P" in small case and vice versa.
4. Click on save.
Create policy : User/User group and Device (You cannot create policy for Device group, Product limitation , Idea already open long back)
Inside the policy you need to select SSH and specify target account as you do for any SSH connection
Under same policy you will have a new text box call Transparent login : Select the same account.
This should solve your problem. Happy Learning!!!.