Add Column Connect to Another Sheet question

Hello.  Please can you point me to the JF page where I can learn more about the Add Column:Connect to Another Sheet feature (first screenshot).  I searched and came up blank.

I am particularly interested in learning about those linked columns (see red arrows in second screenshot below).  What happens when you click on the purple or yellow?  Can you import submissions from multiple sheets this way?  

Thank you!

SSecond screenshot:

By using the connect to another sheet, you may select a form and a field that you would like to view right away in your Sheets submission.

When you click on the purple column or the imported column,you will be redirected to the submission page of that form.

Hope this information helps.

If you have further questions, let us know.

Thank you.  How can I unlink the columns so that the purple tab (see screenshot #2 in OP)?  I was looking for a way to delete/remove that tab.  No luck.  I appreciate your help.

To remove that tab, you will need to go to that tab on the top tool bar and Disconnect as shown below:

I hope this is what you were referring to.

Jeez. I was looking for that, but did not scroll down to the bottom of that menue.  Thank you.