Disabling the detection of classroom overlap
In the management system, it is possible to disable automatic checking of classroom availability.
Disabling this control will allow you to schedule two or more classes at the same time in the same classroom.
NOTE: This function will disable control over all Courses and all Locations.
Navigate to Configuration → Settings → Settings related to Courses:
Scroll down to the section "Manage Calendar Conflicts" and enable the CheckBox "Allow classes from different courses to overlap in classrooms."
Then save the changes with the green "Apply Changes" button at the end of the page: