I'm editing a lot of polygons of a shapefile in QGIS and i need to classify them, so i have to write the classes a repetedly a lot of times. In ArcMap there is an option to have domains set for the fields. How do i do this in QGIS? Thanks
You can customize the attribute editing to various data types (predefined lists, a range of values or a date).
When you start adding new polygons a drop down list should appear showing your list of classes. The below screenshot is from QGIS 1.7.