Step 0 - Set up supporting components and functions, starting data
Step 1 - Add a KendoComboBox to the page, connected to our data via a dataSource
Step 2 - Introduce initial state, TopStateMixin, KendoComboBox selection updating KendoText
Step 3 - Refine the KendoComboBox with CheckBoxes that control option visibility
Step 4 - Adding a KendoGridPicker does not complect view logic
Step 5 - Add CheckBoxes for gender, checking them updates people CheckBoxes
Step 6 - [Un]Checking the last person checkbox now [un]checks their gender checkbox