You could just open your original family, copy the label and rotate it. Then create two yes/no instance parameters for the visual. Then in the parameters, set the horizontal calculation to =Not(vertical). So by default the horizontal comes in normal and when you host to the vertical wall, you just click vertical parameter and it turns off the horizontal. You won’t have to save three families to load into your main family and saves another click when you want to rotate label.
You could just open your original family, copy the label and rotate it. Then create two yes/no instance parameters for the visual. Then in the parameters, set the horizontal calculation to =Not(vertical). So by default the horizontal comes in normal and when you host to the vertical wall, you just click vertical parameter and it turns off the horizontal. You won’t have to save three families to load into your main family and saves another click when you want to rotate label.