Event Action attachment

Hello Guys

Wondering if anyone has used Email Attachment functionality within Event Action (on Apps8/9)?

After opening the Attachment dialog box, the very first option- Attach Files (as shown in below fig.) is the one I am trying to figure out. Second option- Create and include file works absolutely fine.

Looking at Apps 9 Tech document, it states:

“Email Attachments

For email event actions you can add one or more files as attachments. Click on the button next to the Attached Files field to open a dialog where you can type the full path to the files that should be included.”

But, once i provide below path (as highlighted in yellow), custom event stops firing email so wondering if there is any particular path format which i need to follow here.

Thanks in advance.

Best,

Dinesh