diff --git a/Dev-Notes.md b/Dev-Notes.md
index 4234afc..f22ef88 100644
--- a/Dev-Notes.md
+++ b/Dev-Notes.md
@@ -38,6 +38,7 @@ Next steps:
   - https://docs.qgis.org/3.34/en/docs/user_manual/map_views/3d_map_view.html
   - https://www.qgistutorials.com/en/docs/working_with_terrain.html
   - https://earthexplorer.usgs.gov/
+- QGIS icon interactivity (click a dot and see more details about that data point)
 
 ## 20240117