> For the complete documentation index, see [llms.txt](https://emotiv.gitbook.io/emotivpro-builder/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://emotiv.gitbook.io/emotivpro-builder/building-an-experiment-in-builder/how-do-i-build-an-experiment-in-builder.md).

# How do I build an experiment in Builder?

To create a new experiment in Builder, click on the" **+** " at the top right of the screen. Then, to start building, click on the experiment card you want to build or edit from the Experiment library; this will take you to the experiment building screen. From here, you can create phases and add elements to each phase.