My buttons are on the Master Page and you are correct, you cannot set the presence if that is the case as I tried this.Thanks for your help, the matter is resolved now.

Thank you for your insight here, I see what you mean.Would I, for example on the "Next Page" button, say "if on the last page, then make the button invisible?"

I have put two buttons in my form ("Previous Page" and "Next Page").For the "Next Page" button I want to say, if I'm on the last-page, goto page-1,   else xfa.host.pageDown().For the "Previous Page" button I was to say, if I'm on the first-page, goto the last pge, else xfa.host.pageUp()What does the...