Here's a copy-paste from the RH Help...It didn't explain
things the way you did. :-(
Applying conditional build tags to Table of Contents
Use conditional build tags to design and create multiple
versions of your project from a single set of source files. After
creating the conditional build tag, you can apply it to both books
and pages in the TOC for maximum control over the final results.
From the TOC view, you can apply conditional build tags to Topics
also. When you generate a project, you can define conditional build
expressions to include or exclude the book or page in the TOC, from
the output.
Show Me
Use this procedure to apply conditional build tags to books
and pages in the TOC. When you exclude such a tag from your output,
the book or page in the TOC, is not included in the output.
To apply a conditional build tag to a book or page in the
TOC:
Option 1:
Create the conditional build tag.
Click the TOC tab to view the Topic list.
Select a book or page to which you want to apply a
conditional build tag.
Right-click and select Apply Conditional Build Tag, and
choose the Tag you want to apply. The tag is applied to the
selected book or page.
When you generate the project, you can define conditional
build expressions to include or exclude the tagged books or pages
in the TOC, from the output. (A TOC to which a tag has not been
applied, will be included in the output.)
Option 2:
Create the conditional build tag.
Click the TOC tab to view the Topic list.
Select the book or page to which you want to apply a
conditional build tag.
From the Format menu, select Apply Conditional Build Tag, and
then choose a tag. The conditional build tag is applied to the
selected book or page in the TOC.
When you generate the project, you can define conditional
build expressions to include or exclude tagged books or pages in
the TOC, from the output. (A TOC to which a tag has not been
applied, will be included in the output.)
To apply multiple tags:
From the Format menu, select Apply Conditional Build Tag, and
choose New/Multiple. The Conditional Build Tag dialog box appears.
Click Check All to apply all the tags, or select specific
tags to apply to the book or page in the TOC.
Click OK.
If your project is under version control, these steps may
include more options. Click here for more information.
Tips:
You can also apply conditional build tags to topics, topic
content, folders, and Index.
To verify the tags applied to topics, topic areas, TOC, and
Index, or rename a tag, or change the color of a tag, click the
Project tab, expand the Conditional Build Tags folder, and
double-click the tag. You can make the desired changes in the
Conditional Build Tag Properties dialog box.
Ensure that you remove textual references to the excluded
book or page, such as text links, which refer to the tagged book or
page in the TOC. (Hotspots are not active for excluded topics.)
If you generate Printed Documentation, TOC with Conditional
Build tags are not excluded from printing.