We have two types of files for running executions, python files, and Jupyter notebooks. In a python file, you use the "Run Code" button at the top of the file to start the execution. Once you run, your results will automatically be displayed in the window.
When using Jupyter notebooks, running the code is even easier. Either hit Shift+Enter on the keyboard or use the "Run Code" button at the top of the window.
Results for the notebook will be displayed inline with the code in the code window.