When tables are concatenated, cell color attributes are dropped. In Graph Builder, there's no recovery; in JSL, this requires adding some very clumsy code to re-do the cell coloring after concatenation, e.g., as described here. I imagine that adding the code in the JMP app to support this would be very simple and straightforward.
I encountered this issue as described above, but the request may be considered more general. That is, there may be other attributes that would generally be expected to be maintained in a table concatenation. Furthermore, there may be other functions that would generally be expected to maintain attributes, such as Join.