In Libreoffice Calc, is it possible to dynamically freeze multiple rows?

For example, if I wanted to always see rows 5, 10 and 15, as far as I can tell, I would have to freeze every row from 1 to 15. But is it possible to only freeze the specified rows so that if I scrolled down, the first four rows could be 5, 10, 15 and 20.