There needs to be a 'better' way to create the Line and Workspace hierarchy
Right now, you go to an arcane place ( Account / Customizations / Workspaces )
Then you create a Line, … then you create a workspace ( or another Line )
This is a Wizard-like function that repeats with two main choices ( LINE / Workspace ) and sub-choices within each of those. Why don't you make it into a more scalable process that allows the use to do the action in one window / pane and see the result in a neighboring pane / window ( similar to how Apple has their coding tool for iOS and the simulator window right next to that so you can see your actions of coding create a result in near-real-time ).