Matlab files in this directory:

vb_ch_info_get_channel_list_ext	<> return list of EXTRA channel from ch_info
vb_ch_info_get_channel_list_meg	<> return list of MEG channel from ch_info
vb_ch_info_get_channel_list_ref	<> return list of REFFERENCE channel from ch_info
vb_ch_info_set_channel_info_ext	<> set EXTRA channel label list to ch_info
vb_ch_info_set_channel_info_meg	<> set MEG channel label list to ch_info
vb_ch_info_set_channel_info_ref	<> set REFFERENCE channel label list to ch_info