How do you open Multiple RAW images In Camera Raw

Question 1

How do you open your image in Camera Raw when it is already open in Photoshop?
Is the image in the original RAW at this time
Are all the features available?
Which ones are missing?

Answer 1

1. Go under the filter menu and choose Camera Raw Filter
2. It has been converted to either an 8 or 16 bit image
3. No
4. White Balance Preset, the RAW profiles and the Crop tool