Hi Alex,
Thanks for reaching out and for your interest in our products 🙂
Unfortunately the features you are looking for are not present in the plugin out of the box. You can create different tickets type for each event (free, silver, gold) but to show/hide those depending the user group in WordPress would be something you’ll need to custom code yourself. Also tickets do not have a global stock for all the event but they have a stock per ticket type, again something you could tweak but not included.
Please let me know if you have any other follow-up questions on this,
Best,
Nico