How to add a Mirror Column to your Board AFTER you have already added a Connects Board Column

You may have skipped adding a Mirror Column during the Connect Boards Column setup process.  Or maybe you did add a Mirror Column and now you want to add another Mirror Column.  Here's how you do it.

1.  Scroll to the right of the last Column header in your Board, where you will see a "+" plus symbol icon. 
2. Hover over it with your mouse and it will show a black pop-up with white text saying "Add column".  Click this.
3. This will open a pop-up showing 14 of the more popular Column types in Monday.  The Connect Board Column is the 5th option from the top on the left.  Click on this.
4. This will create the Connect Boards Column in your Board and then open up a Pop-up with a blue "Select Boards" button you can use to choose which Board you wish to connect to your Connect Boards Column.  Click the blue "Select Board" button.
5. This will open up a searchable list of all the Boards in your account.  At this point, you can either search or scroll to find the Board or Boards you wish to connect to your Connect Boards Column and simply check the Board/s you wish to connect.
6. Next, check the "Create a 2 Way Connection" checkbox if you want the Connect Boards Column to appear in both/all boards.
7. Finally, click the blue "Connect Boards" button to connect the Board/s to your new Connect Boards Column.
8. You have now successfully added either a 1-way or 2-way Connect Boards Column to your Board and connected it to one or more other Boards.