The XLL Add-ins Window can be used as an alternative to the XLL+ Function Wizard.
The Add-ins window is available at all times within Visual Studio; you don't need to pop it up to see it. The window shows a list of all of the add-in functions in the current source file. It also contains a toolbar with a set of commands for developing XLL add-in functions.
User Guide | Summary of Commands | Help for XLL Add-ins window