I am new to Sony Sound Forge Pro 11. I have recorded a voice over and the client wants me to drop in a new sentence into the middle of a paragraph. How do I go about doing this without having to re-record the entire audio file? The Sony manual is very confusing. I am using a Dell Precision 3620 with an I7 chip and a SSD with 16 gb of memory using Windows 10 64 bit.