If you already have a flow project created on Botmock, you can easily create a mock board from it. To do this, first you need to create a Preview in your flow project. To learn how to create a preview, check out this article.
Once you created a preview, click the Preview menu on top of the Flow Editor.
From the pop-up window, select the Export link.
Click the button Save As Mock Project to create a new mock project with the selected preview flow.