A single test appointment is a test appointment to execute one test definition.
It is possible to create a single test appointment for an individual athlete, for a group of athletes, or for a team.
When creating a single test appointment, it can be saved to be executed later / or saved to execute at that moment.
General info: user functionalities depend on the roles & permissions settings. If a certain functionality does not work within your user account, this will be because you don't have sufficient permissions for this.