Importing events with duration from text file

Hi Francois,

thank you for these changes! The import of channel specific markers in BIDS format worked well, but there remains one bug: Our channels specific markers show up nicely as long as the marked channels are included in the montage that is shown. As soon as the channels with markers are not in the montage shown montage the markers are displayed as general markers that are not specific for a channel. Could you please remove the colored boxes over all channels for the channels that are not shown in the visualized montage? Otherwise these channel specific markings are very useful tools!

Marcel