I have the following function calls at several places in my class.
[myClass doOperationOne];
[myClass doOperationTwo];
[myClass doOperationThree];
Somehow I've managed to find the answer (which is enough for my need here) by referring the post: http://www.cocoabuilder.com/archive/xcode/273123-how-to-use-regular-expressions-in-xcode-find-replace.html, and trial and error method.
My Find string is:
(\[myClass.myMethod )(.*)(\];)
And, my Replace string is:
\1\2WithOptions:[Permissions isOptionsAvailable]\3
Please post if there is any better way than this..