/n_mapn                       Map a node's controls to read from buses

int          - node ID
[
  int|string - a control index or name
  int        - control bus index
  int        - number of controls to map
] * N

Takes a list of triplets of control names or indices, bus indices, and
number of controls to map and causes those controls to be mapped
sequentially to buses. If the node is a group, then it maps the
controls of every node in the group. If the control bus index is -1
then any current mapping is undone and control reverts to normal.

See also: /n_map