Hi Wayne,
The common technique to do this is integrate a charting library. There are lots of free open-source JavaScript charts out there that you could use a Web browser control to display. Here is PB 2019 R3 example app to demonstrate: https://github.com/Appeon/PowerBuilder-Graph-Example
The issue is that PB 11 doesn't allow you to execute JavaScript in the Web browser from PowerScript, which will limit which chart implementations you can use. Also, it is using Internet Explorer, which is obsolete and unsecure.
Keep in mind tons of new features added since PB 11. For example, there is a new feature called UI Themes that codelessly modernizes the look n' feel of your application using pre-defined style sheets. https://www.appeon.com/products/powerbuilder/ui-modernization
So long story short, I recommend to upgrade to PB 2019 R3 if you care about modernizing your UI.
Best regards,
Armeen