how to trace used function in ida pro
my software have 4250 function i cant add breakpoint in every functin
is available plugin(for ida 5.5 or 5.2) for this target
or any other ways
thanks

Ahh yes, the old "shotgun approach". While there might BE a plug-in that would do this, the real question is Why would you WANT to?

More times than not, you just load your application into IDA, and start tracing. Or use IDA to find a function that references a string that is what you're interested in.