Notepad++ Custom Function List (Basic)

I am trying to use Notepad++ as my new editor for PicBasic code. I want to be able to use the function list capability, but I have no experience with XML and the Notepad++ website does not explain how to create your own function list parser very well.

For example, an xml function header would look like:

      <parser id="xml_node"

The Notepad++ parser looks like this:

      <parser id="xml_node" displayName="XML Node" commentExpr="&lt;!--([^-]|-(?!-&gt;))*--&gt;">
            <!-- Only match nodes with at least one attribute -->
            <function
                mainExpr="&lt;[\w\?]+[\t ]+\w+[\t ]*=[\t ]*&quot;[^&quot;]+&quot;"
                displayMode="$functionName">
                <functionName>
                    <nameExpr expr="[^&lt;]*"/>
                </functionName>
            </function>
        </parser>

In Basic I have function headers that look like this:

     Function1:

How do I write the parser to pickup these function headers? If that doesn't work for some reason, I could have a title comment above each function that looks like:

     ;Function1
     'Funtcion1

I do know about the Named Bookmark plugin, but it is a much slower way of navigating. If you can please write your answer in a way that will help others who see this to know how to write a parser for their own code language.

Edit: The Named Bookmark feature only works in C++,HTML,... not in a custom language file. So I can't even use that.