Are there hotkeys for jumping from network to network, most importantly SHOP? Is there a hotkey for refreshing the shader ball?

I'm also curious about recompiling shaders in general. Is it disk I/O that is the major bottleneck for rebuilding the shader ball?

I'd like to consider some upgrades that might improve this process most effectively. I'm guessing the shader ball has nothing to do with the GPU and since there doesn't apear to be much CPU activity when performing this task maybe having an SSD in my laptop would improve the performance.

Thanks in advance,
–Jon