Outlook - Error Multiple attachments

Guys! Apologies if my question is basic. When you can attach multiple items just by configuring the path using “Attach files” under send outlook message activity, why do we have to try all the complicated stuff of initializing, running a for loop on mail message. Am I missing something here because in the forum, people have used some complex programming.? I know once the robot runs where the output file will be saved. I can just configure the path/create a new folder. Can you please help me understand this? I actually configured two file paths and tried sending a mail and it picked it.