TOPIC: Can you set the register button as option on each event

I have a number of events to list on my website. Some are from my sponsors and then other events are organised by our company.

I don't want the register button to be shown on events by my sponsors but I do for my own events. Is this possible? At the moment I know you can remove register button totally but I would like to have an option of turning it on or off for a particular event.

Thanks
Mairead