The movable key & standardised legends
Turn on a legend that lists exactly the shapes and line types your diagram uses, and drop it anywhere on the canvas.
Always accurate
The key only shows the shapes present in your diagram and only the line types you have used — so it can never claim a shape you are not using.
Place it anywhere
Toggle it on from the Shapes panel and drag it wherever it reads best. It snaps to the grid and scales with zoom like everything else.
Consistent across your org
Because the shape kit is standard, every o-flow legend uses the same icons and labels — your readers learn it once.