You can reserve a demo per group per timeslot. Put your group number behind the timeslot. Example:
08:30-8:50 : Group 1
08:50-9:10 : Group 2
Changes are logged by account. (social security)
09:00-09:10 : -
09:10-09:20 : -
09:20-09:30 : -
09:30-09:40 : -
09:40-09:50 : -
Break
10:00-10:10 : - Group 1 (Quinten & Dimitrios)
10:10-10:20 : - Group 4
10:20-10:30 : - Group 14 (Terence & David)
10:30-10:40 : - Group 9 (Patrick & Walter)
10:40-10:50 : - Group 16 (Rick & Marijn)
Break
11:00-11:10 : - Group 7 (Casper & Gijs)
11:10-11:20 : - Group 5
11:20-11:30 : - Group 3 (Jorn & Tom)
11:30-11:40 : - Group 13 (Max & Micha)
11:40-11:50 : - Group 2 (Maikel & Norbert)
Break
15:00-15:10 : Group 10 (Maximilian & Ysbrand)
15:10-15:20 : Group 6 (Luca & Razvan)
15:20-15:30 : Group 17 (Josef & Tijn)
15:30-15:40 : Group 11 (Stijn & Lars)
15:40-15:50 : Group 8 (Laurens & Simon)
Break
16:00-16:10 : Group 15 (Niels & Gil)
16:10-16:20 : Group 18 (David & Pieter)
16:20-16:30 : Group 12 (Mathieu & Pepijn)