How to edit the statistics text of Graph Builder's Line of Fit

[#1]

I draw regression graphs, when i add  f test report, by default "f and p" value show at the graph. but i want only p values. how can i edit

Edit (jthi): changed title from "Editing" to "How to edit the statistics text of Graph Builder's Line of Fit" to make it more descriptive of the problem

[#2]

I think you have to use some scripting Formatting elements in Graph Builder. You will have to modify the logic of building the text but you can get something like this