Where can I find the location of a particular code I.m looking to make?
Though it is not as always as easy as just doing this, but the method for finding the location of your is by browsing the labels. You may browse the labels by selecting edit, and then jump to labeled (Ctrl-G). A pop up will then appear containing all labels contained on the scus/slus file. You can use the scroll bar and move up and down the page, or you can type what your looking for into the search field, because the files usually begin with numbers, symbols, or quotes and so on, your not likely to find what your looking for, but some times you will, but the best way is to just use the scroll bar. All files are grouped according to their keywords, so you should be able to find what you need pretty easily.
