You can direct DITA2Go to replace the content of a paragraph, or of a character-formatted span of text, with arbitrary RTF code. For example, to replace page numbers with graphics in a generated file to be included in WinHelp output:
[HelpStyles] ; Replace deletes, and also puts out the RTF in [HelpReplacements] IOMpgnum=Replace
You specify the replacement RTF code as a property of the format in question, in the following section. For example:
[HelpReplacements] ; Replace causes the insertion of the corresponding raw RTF code below ; in place of the original content of the named para or char format IOMpgnum=\ .{bm c document.bmp\.}
This feature is used in the WinHelp version of the DITA2Go User's Guide, to replace page numbers in keyword indexes with bitmap graphics.