Ability to default numbering to 1-1xxx

[jmvbrown]

Is it possible to add option to default the numbering of channels so they are grouped together. For example, Group 1 is channels 1-20, Group 2 is channels 21-40, Group 3 is channels 41-60 and so on instead of every group starting with 1. For whatever reason, the override option never works for me.