multiple stored find and replace searches in one click

I am thinking this is next to impossible as I have looked everywhere with no avail.

I want DW to remember where I selected some text and execute multiple find and replaces operations that I have stored as .dwr files. So for instance, say I have selected this block of "code" in my webpage:

<p><b>This is bold. <i>This is bold ital.</i></b></p>
<p><i>Italic text that is <font color="green">green</font></i></p>

Say I have stored three search and replace files (dwr files) that function like this:

File 1: replaces b tag (<b>) with "strong" tag
File 2: replaces i with "em"
File 3: replaces font with attribute green to <span class="green_text">

The only way that these changes will occur is if I select the block each time and then select the appropriate find and replace operation for it. That is three times the work necessary in my opinion.

So yes, any workarounds whatsoever will be much appreciated!

P.S. I don't yet have the skills necessary to write a custome extension for Dreamweaver.

P.P.S. This question is so difficult that 500 points don't do it justice!