Normally helm-buffers-list only shows the buffers in the current perspective
since helm uses ido to construct the buffer list and perspective
restricts ido's buffer list to the current perspective. This package supplies
the command helm-persp-buffers which is similar to helm-buffers-list but
lists the buffers in all perspectives, the buffers for each perspective being
shown in a separate helm source.
In addition to the default helm-buffers-list actions, there are actions that
are specific to working with perspectives. For example, you can set buffers
from other perspectives to the current perspective or remove buffers from their
perspective. Also, all of the helm-buffers-list actions are augmented in
helm-persp-buffers so that they operate only on the perspective of the
current helm source or swicth to the source's perspective whenever that seems
logical to do.
Note this package is intended to work with perspective
(https://github.com/nex3/perspective-el).