Snapshot of all VMs through Orchestrator

Hi,

I have downloaded the vCenter Orchestrator appliance and startup the orchestrator client.  My main reason is to create snapshot of all VMs.  I see there are 2 pre-defined workflows in the orchestrator 1. is "Create a snapshot" which creates snapshot of only one VM at a time and 2nd is "Create snapshots of all virtual machines in a resource pool" which only works if I have resource pool setup.  I have a simple VMware cluster and around 50 VMs and I need help in creating a new workflow that will create a snapshot of all selected VMs in shot.

Please help.

Thanks