Clarification Needed: Input Format for 'fname.csv' in mseed_3c Regarding Multi-Component Data Handling

Hello Dr. Zhu, could you please clarify the input format for the 'fname.csv' file in mseed_3c? Should each line contain multiple single-component continuous waveform data paths from a single station, separated by commas? However, it seems that the CSV reading section is only designed to read one file per line.