Here's a link to Wisconsin Forms, showing which ones may not be available for Efile. It appears that most of them are available to Efile.
If you're using TurboTax Online, close the program, clear your Cache and Cookies and return to the FILE section. This may resolve your issue.
Are you Efiling your Federal and WI returns together?
If not, here's more info Filing Federal and State Returns Separately.
Here's how to Contact TurboTax Support for more help.