🚀 go-pugleaf

First, a question: In your post, you have nothing after Chapter. Did you mean Chapter <$chapnum>? 

Say for example you have Chapter - Section - SubSection - SubSection - Section. 

First, you probably need to use a series identifier, like S:, for example. 

In your sections, you want to force the subnumbers to zero, so that they will restart at 1 the next time a SubSection is encountered. You do this with < =0>. So you might have:
S:Chapter <$chapnum>< =0>< =0>
S:Section <$chapnum><n+>< =0>
S:SubSection <$chapnum><n>.<a+1> 

Then, in your spec, you have the tables the same as the SubSection. I'm not sure it you want them to use independent numbering or not. 

By the way, take a look at some info about numbering systems at www.techknowledgecorp.com/help, then look for "The case for simple numbering" in the left column.