Does anyone know if / how to get isogen to put the material list on the iso as a table instead of just as text? I.E. if I have a client who has a table predefined in their titleblock can I write the material list info into the cells of that table similar to writing the pipeline design info (temp, pressure, etc.) into the attributes of a block?

I don't believe this is possible, but this would be a pretty cool feature.

ISOWorx has the ability to do this:
ISOWorx Reports https://www.ecedesign.com/ece-software/isoworx/#Reports
There is a palette to update the table and an associated spreadsheet if you need to feed that information to other systems.