Hello. You can show/hide the columns in the event list that are already available, but you can't add other columns.
- minimum of people to register would have to be mentioned in the description of the event which can say whatever you want. This shows underneath the register buttons and everything else.
- event capacity is already available as well as the number that are currently registered. So users can see if there is space available or not... and do a little math to see how many spots
- price without and with taxes is already available. When you setup tax on your event, your display can be set to show the price both with and without taxes.