XML Source edits not saved

Using LiveCycle Designer ES4 Version 11. Making modifications for accessibility, one requirement is to display the document title in the document window of the resulting static PDF. Instructions say to do the following:

1. 1. To open the Xml source for a document, click View -> XML Source.

Verify if the following tag is available in the Xml:

<?originalXFAVersion http://www.xfa.org/schema/xfa-template/3.3/ ?>

1. 2. If the tag exists, append DisplayDocTitle:1?to the tag. The resultant tag should be:

<?originalXFAVersion http://www.xfa.org/schema/xfa-template/3.3/ DisplayDocTitle:1?>

If the tag does not exist, add the tag with the DisplayDocTitle:1?append.

<?originalXFAVersion http://www.xfa.org/schema/xfa-template/3.3/ DisplayDocTitle:1?>

Note:You need to add this tag along with the other processing instructions. in the following parent node:

<template xmlns="http://www.xfa.org/schema/xfa-template/3.6/">

1. 3. Save the document.

Only problem is, Designer doesn't save the edit in the XML Source after I make it - any thoughts?