Canvas settings
Settings live in two places: the gear icon in the canvas header holds model-level choices, and the footer holds display units and precision.
Beam theory
Open the Settings gear in the canvas header and choose Beam Theory.
Timoshenko
Includes shear deformation. This is what every new canvas uses, and it's the more physically complete of the two. It's the correct choice for stocky members, where ignoring shear makes a beam read noticeably stiffer than it really is.
Euler-Bernoulli
Ignores shear deformation entirely. Useful when you're checking against a textbook problem or another tool that is Euler-Bernoulli only (many are, sometimes without saying so). For slender members the two theories agree closely, so this mostly matters for short, deep members.
Visible, if active, in the footer. Selecting Euler-Bernoulli raises an EB THEORY badge in the canvas footer. The setting is per canvas, not global.
Display units and precision
Set from the canvas footer. These change how results are shown, never what is solved. The solver always works in SI internally.
Metres, millimetres, centimetres, inches, or feet.
Newtons, kilonewtons, pounds, or kips.
How many decimal places results display: one, two, or three.
Material units
The Materials panel carries its own unit selectors, since section properties span a wide numeric range.
Modulus in Pa/kPa/MPa/GPa/psi/ksi, inertia in m⁴/cm⁴/mm⁴/in⁴, and area in m²/cm²/mm²/in². See the Materials & Sections page.
Display toggles
What is drawn on the canvas is controlled from the toolbar rather than settings.
The same Settings gear toggles the canvas legend panel, the in-app version of the Canvas Legend reference page.
Dimensions, constraints, geometry, images, supports, forces, stability bands, and component-vs-resultant reactions all toggle from the toolbar's Show/Hide menu.