Automatic moving and crossfading of items via script

[tom_]

See attached gif file: I want to automatically move all individual splits of a media item. This should create crossfades as if I would do it manually (see gif). It would be best if the size of the overlap were random (range adjustable between x and y).

Since I have a lot of splits, manual editing would be extremely time-consuming. I couldn't find a suitable script to make this possible.

Anybody have any idea how I could do this? Unfortunately, I don't know how to program scripts. :/