It depends on the role of the user on your website. Please follow this link: https://wordpress.org/support/article/roles-and-capabilities. All WordPress roles and the required access levels are summarized in a table for you. A Subscriber user can only send you content while a Contributor can only edit their own posts. Therefore you need to have a specific role for your website. Since MEC uses default WordPress roles, you need to use third-party plugins to manage the posts your users send. You can also use membership plugins. It all depends on your website and what you want.
MEC cannot do this and you need to use membership plugins. Membership plugins can lock the Frontend Event Submission Form for users that are not logged in.
For more info on this please follow this link https://webnus.net/dox/modern-events-calendar/organizer-payment
When posting events, the last option registers the API info of the user. But to activate this item you need to set up Stripe Connect from MEC Settings > Booking > Payment Gateway. For more info click on the link below: https://webnus.net/dox/modern-events-calendar/organizer-payment
You need to go to MEC Settings > Booking > Payment Gateway > Stripe Connect and set the value. For more info check out the link below: https://webnus.net/dox/modern-events-calendar/organizer-payment
This option, that can be seen in the main demo for MEC, is not on by default. Follow this link to learn more about this. Please navigate to the last option in MEC Settings > General > Front-end Event Submission. After turning it on the option will be added to the Frontend Submission form and from that point on, if a user attempts to fill this field in Single Event Back-end Page, Event Setting tab (above the Start/End date for the event) you can find the info provided by the user. Note that users’ posts from the Frontend form are normally Pending.
You can make the form available to guest users as well. Please follow the link below for more details: https://webnus.net/dox/modern-events-calendar/frontend-event-submission
Presently in MEC this is handled by the admin. However, with the Use dashboard add-on you can let the organizers do this themselves. For more information about the add-on please follow the link
Presently in MEC this is handled by the admin. However, with the Use dashboard add-on you can let the speakers do this themselves. For more information about the add-on please follow the link below: https://webnus.net/modern-events-calendar/user-dashboard
Firstly, go to MEC Settings > General Settings > Frontend Event Submission and from the Maximum File Size, set a maximum size.
Let me know if you have any other questions in the comment area.