When's the last time you updated your ECU definition file?
I thought that they were renamed to "cruise" and "non-cruise" now, but I'll admit that I'm not sure.
My LGT has A and B boost tables (target and initial WGDC) but it only uses one of each, and the other is completely unused. Some cars have a cruise/non-cruise parameter that transitions from one set of tables to the other.
Map switching would require changes to the ECU code. There is a custom ROM for some 16-bit ECUs, perhaps including yours... I have a 32-bit ECU so I haven't followed it closely, but you can learn about it here: