Here is what i would like to do. I want to rename all files and fields to Sentence case ie:
CC music factory - CC Music Factory. The problem is that when i do a case conversion it also changes the CC to Cc. If there a way that i can tell the program to ignore any text that have two consecutive Capital letters to leave them alone and continue to change the case for the rest. I would like to do this globally so i don't have to go back and do them one at a time. Please help.
Hello there!
I think i may have find a practical work around for your problem.
1ST STEP - Create a Action Group called Mixed Sentence w/Repeated Chars
Click on "NEW" button and follow the steps bellow:
Actions -> Replace with regular expression
Field: (It works with any of the fields)
Regular Expression: (.)\1+
Replace with: $upper($1)$repeat($upper($1),1)
2ND STEP - Click again on "NEW" button and follow the steps bellow:
Actions -> Case Conversion
Field: (It works with any of the fields)
Case Conversion: Mixed Sentence
The third field should be left blank
There, you learned how to create a action group with two useful actions that will solve your problem! 
I really hope this helps because i've spent a couple hours learning following this useful website:
guiStuff - Regular Expressions: Part 3
Take care!