Yes - there are couple of ways you can do that in
Results View. One is to show a "differences" format rather than an avoided format (#1). That will show one scenario minus another. Another is to simply plot the totals for each scenario on the chart legend (#2). But perhaps the best thing for you would be to show a composite dimension on the X axis showing years and scenarios together (#3). See examples attached.
Tip: once you've created a chart with an arrangement you like, you can save that format as a "Favorite" chart using the Favorites menu. A favorite saves all the chart settings such as report type, axes, units, grid lines, differences, etc. although its values get updated any time a LEAP model is recalculated. You can also arrange multiple favorite charts for display in the
Overviews screen.