Many times, when you are trying to copy text from one system to another you want to concatenate multiple elements but you also want to format it onto multiple lines. A good example is address lines - in Xero, the address lines are split into address line 1, address line 2, address line 3 but in Salesforce there is just one field called billing street. Here's how you do it:
Create a new line by using the Enter/Return key, just like any regular text editor.
While using Text mode to format new lines is much easier, using formula mode allows you to manipulate individual pills as you desire.
Simply add a "\n" when in formula mode between quotes to signal that you want a new line between two parts of the string.
You can also use "\n" to join values of an array using the formula below: