These are helpful resources to get you started on developing CS-Studio display pages and working on Ops controlled IOCs.
Stash Access
You will need to contact High Level Controls to get a Stash account in order to work on the version-controlled CS-Studio and IOC repositories used by Operations.
Basic git Commands
The general flow of using git commands.
First cloning a repository.
Ensure it is updated before working on files inside.
Commit your work locally with a comment about what work has been done.
Push your commits to the repo on Bitbucket.
Create a Pull Request for the repo admins to review before merging the changes.