After stepping a parameter, how do I move the cursor between the different steps of a stepped waveform?
Once you are in Cursor mode, simply use the Up and Down Arrow cursor keys to scroll through the different steps of the waveform. The title at the top of the plot will inform you which step the cursor is currently on.
You can also choose Go to Branch under the Scope menu. This option invokes a dialog box that lets you choose the value of the stepped parameter(s) and then lets you place the left and/or right cursor on the selected branch.