In EmberJs, how to multi-select the list of filenames and identify the selected filenames with save or submit button

I have template which shows list of 'filenames and its description', something like below:

(Name) ------ (Last Modified) -----(Created By)

tower.jpg ------ 02/08/2015 ---------- Tom

icon.pdf ------ 04/02/2018 ------------ Harry

....

Like above, I have many rows for the 'filename and its description'. Can anybody know how to multi-select these files and identify the multi-selected file names using save or submit button? Also, I have tried with tags but since it is a drop down, couldn't achieve for single row multiple values. Any references, links or ideas would be helpful.

Also, my version of ember is 2.11.