How can I create a command buffer pool and create command buffers from it?

[psionic12]

In practice, it is common that create command buffer pools in each thread, then we can get performance benifits, such as reset pools safely. But I didn't find a way of doing this in Vulkano, it seems that there's only one command buffer pool which is called StandardCommandPoolBuilder, and it seems that all command buffers are born from it.

So, how can I create a command buffer pool manually?