With Fast Workspaces you have the option to create pregenerated workspaces.
1. Select the "Fast Workspaces" link in the Settings overview.
2. Now you can choose the number of pregenerated workspaces and if older pregenerated workspaces should be deleted when a newer template file is available.
Prefix Manager
With the prefix manager you have the option to change the prefix of the generated Workspace URL in the workspace list.