To create a Fixed Temperature ignitor, you must have selected one of the Eddy break-up (EBU) models. Right-click the Continua > [physics continuum node] > Ignitors node and select New > Fixed Temperature Ignitor.
This menu item will simply appear as New if the EBU model's Reaction Control property is set to Kinetics Only.
A TemperatureIgnitor node will appear in the object tree. Its label will have a number at the end indicating the total of Fixed Temperature ignitors in the continuum.
