Creating a template
To create a template go to Settings > New events & templates > Add template.
Fill all the preferred settings and tap Done (note that you need to provide a Template title, apart from the actual Title that will be used for the event).
Using a template
Tap the "+" sign or tap & hold on a location then press New to create a new event.
Tap the icon to the right of the title field to select a template. Select the template you want to use.
Tap Done to create the event.
Note: You need to clear the title field for the template icon to become visible so you can access the template list.