Currently we do not have an ‘undo’ feature for our ‘Create Brick’ tool. We are currently building more options for members to edit their bricks, which will include this undo function. In the meantime, we apologise for the inconvenience caused. Some content such as text boxes and images can be clicked on and deleted but others such as the paint tool cannot be. The option of painting in a white colour is available in the colours toolbar - this is useful for erasing mistakes made with the paint tool.