Hi there Chis,
Thanks for getting in touch and for your interest in our plugins!
Not sure what you are trying to achieve, but it’s not possible to create an event without and end-date. With Events Calendar PRO you can create recurring events, so for example you can create an event that happens every day for the hole year or event extend the recurrence end date further in time.
Can you elaborate a bit more on what you are looking with this ‘event without end date’? Maybe there’s another way of settings this up!
Please let me know about it,
Best,
Nico