Posted by MaxStation, 9 November 2011 12:00 am
When you click on Rendering->State Sets this dialog is opened:
It contains one State entry (you can add additional ones) and a single Objects entry (there always is just one).
The States are used to create overrides over the master state of the scene, you can have multiple ones and each can override materials, visibilty, object and render properties etc See the online help for the details: Introduction to state sets.
The Objects are only used when you use the compositing link: it allows you to select which objects are included in the link. The UI is very similar to the States: you press the round 'begin recording state' button and once you're done you press the same button again to stop recording. At any time you can record further changes.
The only thing you can do when you're recording is hide or unhide objects, which it tells you about in the tooltip:
Please only report comments that are spam or abusive.