05-HELP ME - How to batch combine multiple videos into one file (+time interval)

[unity]

How can I batch combine several videos into one file, but so that there is a time interval between them (about 3 seconds)?

[eumagga0x2a]

How can I batch combine several videos into one file, but so that there is a time interval between them (about 3 seconds)?

You don't. You would need a 3 seconds long video with matching audio tracks to be used for "gaps" between the videos.

[unity]

Thank you!
how can I do this in batches? (if there are a lot of videos and adding it manually takes a long time)
help with the script
example
(about 100 videos) (and 1 video (black frame) for ~3 second interval between other videos)
how to add (~ 10 videos (the number can be changed in the script), where between each one, 1 video is added (black frame)