Hi.
So i think I've managed to write a custom script!! But please can someone check it's actually right as I'm pretty new to all this!
https://imgur.com/a/9XZZnd6It creates an array of all the files within a specified folder, and also lets you add a filetype filter (So *.* is all files, *.mp4 is mp4 videos etc...)
I also added a check box to automatically start the folder path with the current location of the unity app - so in my case, looking for files in a folder called 'vids' that's in the same root as the main app, I just check the box and add '/vids' as the folder path.
'/' will look in the application path root.
(The target array variable will need to be an array of type string)
I've attached the .cs file.
Tim