Get The Slope Around A Point In A Trace

You can create a Delta Marker to see the slope of a trace

by default, the slope is shown within the parenthesis, as can be verified by seeing the contents of the Delta Marker:

here %S means slope.

Things You Don't Know About Virtuoso: Select All Using Navigator Assistant

To select all components that belong to same master, just open the Navigator Assistant, and choose Show --> Cells:

All cells that belong to the same master are now grouped together, like shown below:

Now, in the Property Editor Assistant, you can change the property of all the cells that belong to the same master once and for all.