Hello!
As always, there are small things that make our life easier when we are working with Arcgis. But sometimes, they are so obvious and -small-, that we tend to forget how to do them :p
This time, a friend had a layer with many roads and he asked me how to do all of them thicker. To change them all at the same time you just go to:
Layer properties/Symbology/Symbol Tab (above the lines representing each of the roads in this case)
Left click/ Properties for all symbols
There you can change the properties of all your features at the same time 🙂
Happy modelling…
Applied Technologies to Archaeology 