Since you are asking about Openstudio within SketchUp, I am assuming you are using the Openstudio SketchUp plugin to model geometry. There are documentations as well as video tutorials. You can find below helpful links to get started with Sketchup/OpenStudio energy modeling:
1- Documentation:
a- Installation Instructions and General Workflow
b- OpenStudio SketchUp Plug-in Interface Guide
c- Openstudio Basic workflow guide 2015
d- OpenStudio Application Interface Guide
e- Creating Openstudio Model
f- Best Practices
g- Running Simulation and Viewing Results
h- Troubleshooting
For more, you can visit https://openstudiocoalition.org/
2- Youtube video tutorials:Helpful video tutorials by NREL demonstrating the workflow (Note: some of the videos are old)
https://www.youtube.com/user/NRELOpen....
You will be able to find several Sketchup/OpenStudio video tutorials on Youtube, just use the key words (Sketchup and Openstudio) when you search.
3- Unmet Hours: You should be able to find useful information on how to get started, modeling a certain technology, or a solution for your problems/errors by searching this website. Remember to always look for the information yourself before asking a question.