You can activate or deactivate the use of the analysis add-on in the Add-ons tab of the "Model Base Data". A green dot in front of the add-on description means that a license is available. An orange or blue dot indicates that the use of the add-on is only available as demo or as part of the trial version, and the range of functions is limited.
As soon as you activate the add-on and select the design standards, the user interface is extended by new entries in the navigator, tables, and dialog boxes. This means that the time-dependent analysis parameters is fully integrated into the user interface of the RFEM program.