The OpenStudio SDK only supports the Command Line Interface for running measure based workflows quickly and easily. If you are looking for a GUI to generate OpenStudio models and workflows, you may consider the OpenStudio Application. More information about the Application is available here.
Command Line Interface
Can't find the measures you want, or need to customize an existing measure? The Measure Writing Guide will help you get started.
Measure Writing Guide
Learn how to create design alternatives as part of a parametric study using the OpenStudio Parametric Analysis Tool (PAT). Run simulations locally and on the cloud.
Parametric Analysis Tool