Region types

The Insert tab is the catalogue. Plots have their own tab. A slider is attached to a math assignment from the context menu, not placed as a blank block.

Insert tab

• Math — expressions, assignments, and results. The default if you click empty paper.
• Text — notes, headings, and lists. Double-click empty paper, or Insert → Text. Mark a text region as a section on the Text tab.
• List — a dropdown. Each entry can inject its own variables into scope.
• Sweep — a parametric table: vary an input and tabulate expressions.
• Summary — labels plus live-linked result cells.
• Line — a horizontal rule (a text region that is only a separator).
• Picture — an image from a file. You can also paste or drop an image on the canvas.
• 2D Frame — sketch members, supports, and loads, then solve.

Plots tab

• Line, area, scatter, bar — 2D charts (Chart.js).
• Polar line, area, and scatter.
• 3D — a surface z = f(x, y).

Elsewhere

• Section table — Text tab, Sections group, Table. A clickable contents list.
• Slider — right-click a math assignment that uses :=, then Add slider….

Later sections cover how to fill each type. Here you only need to recognise the button and know that every one of these is a region you can select, move, and copy.