How to display a list content within hiDisplayAppDBox to each line each value ?

Hi All , 

I have a list , e.g.  mylist = list("aa" "bb" "cc") , I want to show the list content within  hiDisplayAppDBox  ,

I want to let the value display like  as below not a complete list

"aa"

"bb"

"cc"

Thank you,

Charley