Hello, My task is to find out, if Design Builder is capable of correctly simulating the hygric and thermal behaviour of certain building materials. For this reason, I am trying to recreate a real-life experiment in Design Builder. To do this, I need to be able to control the temperature and humidity in a room. The temperature should remain constant at 23°C, while the relative humidity should be 45% for 48 hours and then suddenly rise to 95% for an hour. The humidity supply should then be stopped. What is the best way to do this? Until now, I have only been able to control the humidity via the heating and cooling system. However, as this has to work to maintain the 23°C, the humidity supply also changes.