Can spacing be changed when entering text within individual fields in EndNote X9?

I would like to ask you if there is a way to change the spacing when entering text within the individual fields when creating a new reference on EndNote X9. 

I ask this because while I was writing inside a field it happened to me that a space was automatically created between one line and another and I could not understand how; then closing and reopening the program is back to normal. And in the event that it happens again I would like to understand how to solve the problem easily, without closing and reopening EndNote.

Thank you very much for the helping!