Create an Event and select either Add Paid Ticket or Add Free Ticket.
Note: For the following example, Member's tickets will be free and Non-Members will incur a cost (but they can be in any combination you require).
For Member Attendees:
For the Free ticket (which will require Membership), enter a Ticket name or description and then select Settings
In the Settings, you can customise your Ticket and restrict to Member's only (as well as adding a Ticket Description, a Start/End Date for ticket availability, limit the Tickets Per Order sold and, if required, restrict to either Any Membership or a specific Membership Level).
For Non-Member Attendees
For the paid ticket (which will not require Membership), enter a Ticket name or description, a Ticket Price and then select Settings
In the Settings, you can customise your Ticket and restrict to Member's only (as well as adding a Ticket Description, a Start/End Date for ticket availability and limit the Tickets Per Order sold.
For Non-Members wishing to attend the Event, they now no longer will need to Register a TidyHQ account, but they will be prompted to buy the tickets (they don't need to purchase Membership).