No Machine Learning model is perfect, and they can always make mistakes. You may want to make the final touches to your project before presenting or delivering it. While Picterra does not support editing your results directly in-app, you can now take your exported results, edit them in a 3rd party software such as QGIS or ArcGIS (softwares that are more focused on manual GIS work) and then upload them back. You can do this per-image by clicking on the upload link after clicking on View Results for the image in your project.