To use model statistics, ensure that PerformanceMonitorOn=T in your TM1 server configuration file.
Please note leaving PerformanceMonitor set to true permanently may impact the speed and performance of your model so it is recommended to only have it set to true when you need to bring through fresh statistics.
You will need to restart your TM1 server after changing this value.
For package based File connections, please run the QUBEdocs Create Package to generate a new QDPackage.7z which can then be used to generate a new set of documentation.
For all other connections, please re-generate the documentation.
The model statistics should show in the new snapshot.