If you did not read about organization settings, we recommend you to have a look on them first.
In the top left corner, right to the organization label, you can find a project label. By clicking on it, you can open a project menu, where there is a number of collections and documents in the current project. You can also open project settings.
In project setting, you can configure the project icon and color, code and description. Remember, everything that has a dotted underline can be edited. We recommend you to use the icons and colors to easily spot individual items in Lumeer. The visual orientation can save you a lot of time in the future.