You can currently do this by unchecking "Public" on the membership column of an event. Or you can hide it from Event Lists/Calendars using the setting on the Additional Settings tab inside the event. Get the event set the way you want and then make it public when you've got it fixed up the way you want. 

I recommend the "Public" checkbox on the memberships tab. Then you can set it this way for many events and enable them as public all at once. 

Hi there- sorry, I'm not quite following the use case here. Are you wanting to share a URL of your calendar publically that shows all events and reservations in one place? Or are you trying to link them to a specific occurrence on the admin side of your system? 

Today we released an update to the Kiosk functionality where you can now Restrict Check-ins by Membership type. The barcode won't be hidden, but you can choose which memberships are allowed to use the kiosk to check-in. 
Restrict Check-In by Membership Type
The Kiosk can limit the memberships that are allowed to use the Kiosk. When selected, the setting will default to ALL memberships. But the admin can add specific memberships to only allow these memberships to check-in. There is also a corresponding message that will display which can be edited if the player's membership is not eligible to use the kiosk.

How it works with Attendance Tracker
If the org is using Attendance Tracker, there is also an additional setting to opt-in to: Apply Membership Check-In Restriction to Attendance Tracker Scan-Ins

• CHECKED- Players without the selected memberships cannot use the station to scan-in.
• UNCHECKED- when not applying to scan-ins, players without the selected membership who do not have a reservation/registration to check-in CAN successfully scan-in to track attendance. But if they have an activity it will prevent both the scan + check-in. If using this combo (restricting membership + not applying to scans), I recommend updating the Successful Scan-in Message to say something like "You have no available check-ins, but your attendance has been logged!"

Hi there, our app/sign-up flow does recognize if a player has the same email and requires them to use that email when setting up an account. They cannot use the same email twice in the same club. Please contact our support team for assistance so we can see if there is something we need to correct here.