.type autitl.tst
.type
.CHAPTER title 1
chapter 1
.page
title should be "TITLE 1"
.NO AUTOTITLE
.NAT
.chapter TITLE 2
chapter 2
.page
title should be "TITLE 1"
.AUTOTITLE
.AT
.CHAPTER TITLE 3
chapter 3
.page
title should be "TITLE 3"