That's correct.  Do not enter the W2 box 11 amount in the W2 screen.  Instead, enter it in screen 14.1.  Also, W2 box 1 includes (is increased by) the W2 box 11 amount, and you therefore have to manually reduce the box 1 amount in the W2 screen (the program does this automatically when you put the W2 box 11 amount in the W2 screen, but now you are not doing that).