Wow!! This is the most ridiculous decision I have ever heard!! Who wants automation for only 20 files...!!! Even worse, let's not indicate anywhere (tooltip, name) about this ridiculous limit and have people spend hours troubleshooting why only 20 files get ever returned...
It would be faster to rename 20 files by hand! Either rename the pathetic action to "list on 20 files" or please remove this unusable limit ASAP...