Bagaimana menambahkan Komentar di file web.config saat runtime di asp.net

Halo semuanya,

Hai, saya ingin menambahkan beberapa komentar di file web.config saya saat runtime.
Berarti misalnya

file Web.config asli adalah:

<pre lang="xml"><?xml version="1.0"?>
<!--
    Note: As an alternative to hand editing this file you can use the
    web admin tool to configure settings for your application. Use
    the Website->Asp.Net Configuration option in Visual Studio.
    A full list of settings and comments can be found in
    machine.config.comments usually located in
    \Windows\Microsoft.Net\Framework\v2.x\Config
-->
<configuration>
    <appSettings>
  <add key="customsetting1" value="Some text here" />
  <add key="myKey" value=",1,1,1,1,1,1" />
  <add key="RemoveTCPError" value="1,1" />
 </appSettings>
    <connectionStrings>
  <add name="myDatabaseName" connectionString="whatever" />
 </connectionStrings>
    <system.web>
        <!--
            Set compilation debug="true" to insert debugging
            symbols into the compiled page. Because this
            affects performance, set this value to true only
            during development.
        -->
        <compilation debug="true"/>
        <!--
            The <authentication> section enables configuration
            of the security authentication mode used by
            ASP.NET to identify an incoming user.
        -->
        <authentication mode="Windows"/>

        <customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">
            <error statusCode="403" redirect="NoAccess.htm" />
            <error statusCode="404" redirect="FileNotFound.htm" />
        </customErrors>

    </system.web>
</configuration>

Pada beberapa tombol klik, setelah itu diubah seperti :

<?xml version="1.0"?>
<!--
    Note: As an alternative to hand editing this file you can use the
    web admin tool to configure settings for your application. Use
    the Website->Asp.Net Configuration option in Visual Studio.
    A full list of settings and comments can be found in
    machine.config.comments usually located in
    \Windows\Microsoft.Net\Framework\v2.x\Config
-->

<!--
    Note: As an alternative to hand editing this file you can use the
    \Windows\Microsoft.Net\Framework\v2.x\Config
-->


<configuration>
    <appSettings>
  <add key="customsetting1" value="Some text here" />
  <add key="myKey" value=",1,1,1,1,1,1" />
  <add key="RemoveTCPError" value="1,1" />
 </appSettings>
    <connectionStrings>
  <add name="myDatabaseName" connectionString="whatever" />
 </connectionStrings>
    <system.web>
        <!--
            Set compilation debug="true" to insert debugging
            symbols into the compiled page. Because this
            affects performance, set this value to true only
            during development.
        -->
        <compilation debug="true"/>
        <!--
            The <authentication> section enables configuration
            of the security authentication mode used by
            ASP.NET to identify an incoming user.
        -->
        <authentication mode="Windows"/>

        <customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">
            <error statusCode="403" redirect="NoAccess.htm" />
            <error statusCode="404" redirect="FileNotFound.htm" />
        </customErrors>

    </system.web>
</configuration>

atau di mana pun di file web.config, komnet harus ditambahkan atau di bagian mana pun yang dikomentari, teks harus ditambahkan.
Apakah ini mungkin.
Tolong bantu aku.

Terima kasih untuk semuanya.

Salam,
Ranjeet Waje