a) I have only two beamlines & two scientist (FemtoMAX-Thai Pham, CoSAXS- Tomas Plivelic) and Zoltan to help/comply-ish with the safety rules.
We can split in two groups 20-ish & 20 -ish. (Which is already twice of the recommended size.)
Each group goes to one of the beamlines for a 20 minutes introduction.
b) If the staff agrees we can switch groups and repeat. This was not initially stated on my initial request as I thought I will receive enough answers to minimize their time.
c) the groups could spend some time at the museum/exhibition.