Choose builder columns

Show only the figures you read. The choice applies to every builder.

Toolbar → Configure visible columns: tick columns, Show all columns, or Reset to defaults.

Column	What it shows
Structure, Plot, Side, Qty, Expiration, Strike	What the row is
Margin	The most the row can lose by its front expiration: dollars, “Unlimited”, or $0 when it cannot lose
PnL	Profit or loss of the row
PnL%	PnL as a percent of Margin
Line cost	For a scenario, cash taken in (+) or paid (−) at the current mid
Delta, Theta	Position Greeks: signed by quantity, times the multiplier
Avg, Mark, IV%, Cost, Curr cost, Comm., Gamma, Vega, T/D	Hidden by default

Margin

Margin here is the most the row can lose, computed from the legs. For plan targets, Settings → Trading → Plan margin chooses Max, Current or Original. See Margin.