The Ra/Dec feature is accessible when you are already aligned. Note that you can now enter ''h'' for hour, ''m'' for minute, and ''s'' for second in Ra, and ''d'' for degree in Dec instead of using symbols. Go to the main telescope screen (where you normally view and take pictures), tap 'Move', then tap the crosshairs in the top right corner. You need to do this after orientation:

That's it. Enjoy your observation!