Is it possible to read content of an IceBreak 'marker' in the program code?

Question

I'm using IceBreak to make HTML frontend for RPG programs.

There is a function called 'SetMarker' which takes the name of the marker and the value:

SetMarker('Demo':'Example');

This makes the value available for the HTML code:

<!--#tag="MyTag"-->
<p>This is a/an <%$ Demo %></p>

When called by RPG:

ResponseWriteTag('IceB.html':'MyTag');

My question is: Is it possible to check the value of a specific 'marker'? Or if it has been set? Some kind of 'GetMarker' method perhaps?

(I tried searching here and there, but 'marker' and 'icebreak' mostly gives completely unrelated stuff)