System break in Liturgical Unmetrical template

Hi,
I do not want to have measures in my short piece of music, Hence I chose the Liturgical Unmetrical template and it seems to work as I want it. However, it's not possible to add a system break. If I try, it's always added at the end of the line. I attach the file, the second half of the system will eventually contain almost the same notes as the first part, and text underneath will stretch it so that a system break is mandatory. I need a system break just at the point where the rests begin. I searched through the Internet and this forum, but I didn't find a working solution (or I didn't understand it, which is also possible).