3D and Materials options are grayed out?

[jchasec]

I am trying to add an "inflate" effect to some colored objects and when I apply the "inflate" 3d type, it leaves all the other options grayed out and unusable. See screenshot. How can I actually apply the other options in this window? 

[Ton Frederiks · Accepted solution]

You have selected multiple inflated objects. 

What happens if you select a single one?

[Jessica27305672c9du]

this worked! thank you