Business & farm

I entered the Box 1 info, as well as the info in all other boxes, except Box 2.  When I started on the "second" K-1 in order to enter the Rental Income, I couldn't un-check the boxes that indicate I have info in them (Boxes 13, 15, 18, etc.).  As I go through the process, the amounts that I entered from the first K-1 are shown.  Do I delete them as I am now on the "second" K-1? Or, leave them??