How to genera more than 1 attachment with BOT / Send email

[kvngo94]

Hi guys, 

I use Bot to track for event, then apply send email task

In send email task we have an option to generate attachment 

I am using docs template for this attachment

But how can we generate more than 1 attachment in 1 email ? For example, if <<Start:>> << End>> expressions in the table can yield more than 1 unique orders so then we can send each attachment for each orders ?