How to Merge Multiple Polygons (Shapes) into One Feature in QGIS.
This tutorial shows how to combine multiple floor plans into a single feature using a MultiPolygon layer in QGIS. You’ll learn how to create a GeoPackage, set the geometry to MultiPolygon, import coordinates from AutoCAD (CSV), enable snapping and digitizing toolbars, and use the Add Part tool to draw several polygons as one feature in the attribute table.
Key Topics covered:
Creating a MultiPolygon layer in QGIS
Importing CSV coordinates into QGIS
Digitizing polygons
Using the Add Part tool fro the Advanced Digitizing Toolbar
Saving multiple shapes as one feature