Google Calendar - Events

Google Calendar - Events

Hi 

I wanted to clarify something, i set up our crm 2 years ago and dont remember how i did this.  We use 1 google calendar account for 2 users for booking appointments the other user has this google calendar set up on his iphone so any events/appointments will show up on his phone regardless he never sets up his own tasks or events etc only i do this on my zoho user/account

I wanted to separate the two user google accounts as i wish to switch from creating task/reminders to setting event reminder pop ups for myself, find myself missing some tasks pop ups so looking for a better way to be reminded of something.. 

Is it possible to do this?