If you create a text file that contains the dates of the video files, one date per line, then you can import that list as a subtitle text file.
Before importing the text file, you need to add subtitle markers along the timeline, presumably a marker at the beginning of each video clip. The number of markers should equal the number of dates in the text file. When you click the "Add" button to add a subtitle marker, there will be a line of text, "Double-click to edit," in the Subtitle column. You don't have to double-click on anything because that wording will be replaced when you import the text file.
You'll see some icons at the bottom of the subtitle room for editing subtitles. Click on the folder icon to import your text file and you will see the Subtitle column filled with the dates from the text file. The dates will display on the preview screen when you play back the timeline.
You can read more about subtitles in Help.
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