Copy cell contents for multiple columns and put into a comment for a cell in another column

I have a daily routine that involves downloading a list that I need the cell contents of several columns to be populated into a comment for the cell in column A for the same row -- but also have the heading (row 1) for each column to preface the data populated in the column.  

For the attached I'd like the following column values populated into the comments, in this order:
CUSIP (Col I)
Sec Short Name (Col L)
Trade Date (Col J)
Broker ID (Col K)
Trader Login (Col M)
Security Type (Col N)

So for A3, I'd like the comment to be populated with the following:

Repeat all the way down the list.

I'd also like it to have the ability to not breakdown if a cell value is empty.  

Thank you

Please note this is an expanded request to the thread answered below:

https://www.experts-exchange.com/questions/29011301/Copy-cell-contents-for-two-columns-and-put-into-a-comment-for-a-cell-in-another-column.html?anchor=a42062290¬ificationFollowed=186303770#a42062290
TBLTall-Worksheet1-expanded.xls