Unless I am totaly dum, i don’t see how one user can access his dowloaded files in the front end, throught multiple file column in the back end. If we can’t clic the link of the documents we uploaded what is the purpose of this feature? I am sure I am missing something but can’t find out yet. I have tried buttons but i can’t select multiple files. The only solution i see would be to create an image picker for each document i want my user to upload wgich isn’t UX great experience and therefore I don’t understand the purpose of multiple file feature?
The more complex solution is to use a series of single value columns to split the array into multiple columns. Or you can convert into a string using a Joined List column and do something with it using javascript, html, a custom AI component, or various other methods.