You can create an experiment in 2 locations: within a subproject, or a standalone experiment within a project. Check out more on experiments here: Can I create an experiment without a subproject?
Creating an experiment without a subproject
Navigate to your project of interest where you wish to create an experiment under.
Click the ‘Create’ button near the top of the page and select ‘Experiment’ to create an experiment.
The ‘New experiment’ modal should appear. Fill out the necessary form fields.
Creating an experiment under a subproject
Navigate to your project, the subproject of interest which you wish to create an experiment under.
Click the ‘Create’ button near the top of the page and the ‘New experiment’ modal should appear. Fill out the necessary form fields.