Hello,
Thank you for posting on our forum. You need to enable this option: https://webnus.net/dox/modern-events-calendar/booking-settings/#Enable_Booking_for_Ongoing_Events
You can find it here: 
Best,
Webnus team
Than's that exactly what I was looking for.
Glad to be of help.
Alicia Ramirez
As the title says, I have an event that starts at 8 am and ends at 3 pm. I have different tickets to attend at different times, so if I have a ticket from 1 pm to 3 pm, it stops selling at 8 am (even though the ticket has a set time of 1 pm to 3 pm). Is is possible to keep the booking open until 3 pm?