Answer:
The programs RFEM 6 and RSTAB 9 are connected to a personal Dlubal account. This also applies to the viewer or demo mode. To ensure that your partner can create a new account, all they need to do is to enter their email address and password.
After starting the trial or demo version and logging in, your partner can open the model. The usual view functions are available for viewing objects. However, the model cannot be edited, calculated, or saved.
Results can only be viewed in the same program version as the model was saved in!