Selected features are highlighted in yellow and surrounded by a point identification box.
When multiple features are selected, the point identification box encompasses all of the selected items and anything you do affects the entire selection.
Use highlighting to see the difference between various categories of features.
By default, features are highlighted in yellow. You can change the highlight colour for any feature class or subset.
Use clipboard operations to cut, copy and paste and to undo or redo operations. Undo works for most operations, but it doesn't work for the following: