In Pixlr, users can indeed edit multiple layers, which is a powerful feature for enhancing your graphic design or photo editing projects. When working on layers, Pixlr provides various options that allow for flexible adjustments to each layer independently or collectively. Users can select multiple layers by holding down the Shift key while clicking on the desired layers. Once selected, users can move, resize, or apply certain effects to all the chosen layers simultaneously. Additionally, you can group layers, which makes it easier to manage them for more complex compositions. To access these features, users may find relevant options in the layers panel, which offers a clear view of all layers currently in use. For further details, users may wish to explore the user interface and documentation available on the website.