You can specify a custom name for the model or accept the automatically generated name,
which is TCM.
Forecast
The option to Extend records into the future sets the number of
time intervals to forecast beyond the end of the estimation period. The time interval in
this case is the time interval of the analysis, which is specified on the Data
Specifications tab. When forecasts are requested, autoregressive models are automatically
built for any input series that are not also targets. These models are then used to
generate values for those input series in the forecast period. There is no maximum limit
for this setting.