Facebook Conversions API Custom Events

I am trying to setup a Zoho CRM event to trigger a Facebook Conversions API event.

We have several lead types and purchase types and would like to distinguish each with Custom Events i.e. lead-kids-program and lead-kids-schoolholidayprogram etc…

The catch is, I would like to create a custom named event but there does not seem to be an option to choose a custom name for Event Name.

Can we only choose from the list of Facebook Standard Events for Facebook Conversions API?

Thanks,