You can see shared folders from either Windows computers, or other Linux computers. Here, we see one shared folder from another Linux computer.
You can use drag 'n drop to transfer files between these computers and your computer. It works the same as if you were transferring files between folders on the same computer.
Note that you don't have to do anything special to enable this capability on your PCLinuxOS system. If there are other computers on your network that are sharing folders via Samba, you computer will find them automatically