I have a feature layer that has points. I want these points to be transparent depending on a field that I've created.
Here are references to being able to actually do this (I do understand that these are mostly tech article and a gis.se question, but somewhere someone has done this):
- Creating symbology for multiple attributes within the same feature class in ArcMap 10
So I believe this is possible, and what I've found is that under the symbology settings, the Advanced dropdown should have a Transparency option. However this is what I find:
Any ideas what I need to enable to allow this?