Selection (Dropdown) list

Make your calculations interactive with selectable inputs.

You can turn any variable with a predefined list of options into a selection list from the variable settings panel.

A selection list allows users to choose from a set of options directly on the page. The selected value can then be used as an input in other parts of your calculation, making your page more interactive, user-friendly. and less prone to input errors.

1D Lists

1. Type '/' to launch the page command menu

2. Pick 'Selection'

1. This will immediately insert a Selection variable with some sample selection options

1. From the variable settings, adjust options in the formula:

1. Updated options will now render in the selection dropdown on the page.

Note that the formula for your variable will update to ctselect([array]), and cannot be edited when in list view. Switch back to a assignment to edit the values.

2D Lists (Label/ID Pairs)

You can also define dropdown options using a list of lists to separate user-facing labels from internal values.

Example Format:

List: '[[1, "One"], [2, "Two"], [3, "Three"]]',

In this structure:

• The second item in each inner list (e.g. "One", "Two", "Three") is shown in the dropdown as the label.

• The first item (e.g. 1, 2, 3) is the value that gets returned when the user makes a selection — this is referred to as the id.

This setup is especially useful when you want user-friendly labels on the interface but use more technical or numeric values in your calculations.