You can change the behaviour of the 'Add Moment' (+) button in Settings > Preferences > Capture.
The buttons has two editable gestures — Tap and Tap & Hold.
There are 4 available options for each gesture:
New Moment — This is the default behaviour of the 'Tap' gesture, launching the 'New Moment' screen.
Write Note — This takes you straight into write mode with the keyboard up.
Add Photos — This is the default behaviour of the 'Tap & Hold' gesture, instantly launching the photo selection screen.
Check In — This launches the 'Add Place' screen so you can instantly capture your location.