I have an early 2009 MacBook with a 240GB SSD. I dual boot Snow Leopard and El Capitan, Snow Leopard is my main OS and El Capitan I use just to play around with. I only gave El Capitan a 20GB partition though and it has quickly filled up. I've tried shrinking my Snow Leopard partition to expand my 10.11 but 10.6 said it needed a newer OS to do so. So I booted into 10.11 and I cannot figure out how to resize hard drive partitions in the new disk utility app. It really looks like a step back. Can I get some help to resize my partitions?