When trying to create an event and for example trying to change the priority, you have to scroll down. the overview tap bar is then hidden. However, it would be helpful to see it troughout the entire process of creating an event.
steps to reproduce

1 create event
2 scroll down

expected result:
bar on the top is fixed in place and does not move when scrolling

actual result:
bar moves when scrolling and, ultimately, hides away