Scripting inside Workspace

I would like to be able to script Workspaces using Javascript. An API would be awesome.

Example: when user drags changes Dimension in one table, listener gets triggered. Javascript code attached to that listener then updates other tables in the Workspace.

Example of things I would change programmatically:

- Dimensions / Metrics / Segmentation - add, remove, change, break downs (add, remove, change)

- Date ranges

- Show / hide panels

- Replace text