How to setup conditional when upload is more than 1 file? For example I want to zip or put in a folder multiple upload files and regular upload action when there's only 1 file.

Hello Firdaus,
You can easily do that by adding a condition, just after the repeater step (the one that you are using with multiple upload field)
The condition value would be:
{{repeatName.length == 1}}
- Then -> step for single file
- Else -> step for multiple files

thank you