A quick, guided walkthrough of the toolbar — right inside the app.
Quickstart
Open the Help dialog — the ? icon in the bottom-right corner of the calculator.
Click Take a quick tour.
A short walkthrough highlights the main tools
Use Next / Back to move through it, or close it any time.
What it is
A handful of highlighted callouts pointing directly at the toolbar, each explaining one tool in a sentence. It's
meant as a first orientation — take the tour to see where things are, then head to
Getting started to build your first truss.