Welcome to the Make community!
To do this, you can use the built-in function:
toArray(collection)
Then, you can use map to get the values of each array item.
map(complex array; key)
Here’s an example of how you can use these functions together:
{{ map(toArray(1.data); "value") }}
Make Input Markup: Copy-paste the above into the field, including start/end curly brackets for it to import as intended
These functions may have also been covered in the Make Academy tutorials — refer to the Make Academy Course Overview to learn more.
— @samliew
P.S.: investing some effort into the tutorials in the Make Academy will save you lots of time and frustration using Make!