Hi OutkastMark,
Welcome to our forum and thanks for contacting us with your questions!
Unfortunately I can't really help you with your first question, because we provide support strictly related to Highcharts. If you want to learn if it is possible to integrate Highcharts into MS Access app, you have to ask on MS Access support channels or general forums like Stack Overflow.
When it comes to your second questions, here are threads with examples of heat map and bubble series combination:
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viewtopic.php?t=35489
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viewtopic.php?t=41725
Let me know if it was what you were looking for.
Regards!