...
When you are finished using a selection, it is important to clear the selected features, because the majority of tools in ArcGIS Pro only run on selected features. Therefore, if you run a tool anticipating that you will be processing all features in a particular layer and you inadvertently have left some features selected from a previous process, only those selected features will be processed, which will lead to unexpected results.
...
- In the Contents pane, right-click the Census_2010_By_Superneighborhood layer name and select Attribute Table.
- In the table view, use the scroll bar to scroll to the far right of the table.
- Double-click the 'Name' field header to sort the neighborhoods alphabetically.
- To select a neighborhood from the table, click the gray square to the far left of each row.
- To select a contiguous an adjacent section of of records, hold down Shift and select a record below or above the currently selected record to automatically select all records in between.
- To additionally select add or remove individual records from the selection, hold down Ctrl and select another record.
- You can clear as you did before or, at the top fo the Census_2010_By_uperneighbrhood table view, click the Clear button.
- On the the Map tab, in the Selection group, click the Clear button to clear the selected features.pic
- Close the attribute table.
- pic
Symbolizing Layers By Attributes
...
Adding Layer Transparency
- Ensure that the Census_2010_By_SuperNeighborhood layer is selected.
- In the ribbon, click the Feature Layer contextual Appearance tab.
- In the Effects group, slide the Layer Transparency slider or type "50" and hit Enter.
...