You can create a funnel with just a few clicks, combining events and screens. 

1 » Click on Create funnel and build the desired path by selecting proper events or screens as the next steps. In case your users can complete the expected action by visiting a few different screens at one point, you can also group all of them together in one step. For example, if it doesn't matter if your users started their journey by logging in or registering a new account, you can select the "login_screen" or "registration_screen" as the starting point.

2 » Add all the required steps for your conversion. You can easily rearrange your funnel by dragging and dropping each of the steps.

3 » Choose if you want to group it by the app version, device size, OS version, or Platform and click View funnel. If you want to check your funnel later, don't forget to click on → Save funnel.