Run L1topo simulation in 21.3, new features
How to change the L1topo simulation to run in 21.3.
Add the L1topo simulation with proper configuration here https://gitlab.cern.ch/atlas/athena/blob/21.3/Trigger/TrigT1/TrigT1CaloFexSim/share/EnableTopoAlgorithms.py
Ingredients on how to run should be up to date here https://twiki.cern.ch/twiki/bin/viewauth/Atlas/L1CaloUpgradeSimulationIntegration
Example of tests which run as part of the builds: https://gitlab.cern.ch/atlas/athena/tree/02b5e56e25f35197536986269a6ea46a16dc708c/Trigger/TrigValidation/TriggerTest/test specifically with April's nightly, or this from 21.3 https://gitlab.cern.ch/atlas/athena/tree/21.3/Trigger/TrigValidation/TriggerTest/test
Testing changes in the menu: https://gitlab.cern.ch/atlas/athena/tree/21.3/Trigger/TriggerCommon/TriggerMenu