[Island Girl]

Can you tell me how to state a conditional field in a header as follows:

If the page number is larger than half the number of pages plus an
additional 3 pages, then "ipsum lorem"

I can get as far as {IF {PAGE} { = {NUMPAGES} /2} "IPSUM LOREM" but how do
I get the +3 in there?
I probably will never need to know this, but I just started wondering about
it and nothing I try seems to work.

Thanks for this and for all you do!