When importing a vector file into the MAX PLUS II Waveform Editor, the signals appear in two basic groups. The first group of signals displayed are the single-bit wide signals. Then, all the data buses are displayed.
Within each group, the order in which the signals appear is the order in which they are declared in the vector file. You can change the order that the single-bit wide signals or the buses appear within their respective groups by changing their order in the vector file.