Access the beating heart controls from the bottom right-hand corner of the screen. The play / pause button will begin or pause the heart beat animation.
The heart will beat in real time as you explore, allowing you to add or remove layers, change the view options on structures, or annotate or edit the model with Tools as the heart beats.
Control the speed of the heartbeat using the BPM controls in the bottom right hand corners. Tap the plus and minus buttons to increase or decrease the rate of the heartbeats by increments of 10 BPM. The heart can animate to a maximum of 120 BPM, or a minimum of 40 BPM.
For granular control of the beating heart animation, slide your finger over the ECG controls located in the bottom right-hand corner of the screen. Use these controls to pause and explore the model at each step of a heartbeat.
Swipe downwards on the ECG to change it into a minimized slider, while still having access to the controls it offers. Swipe upwards on the slider to restore the ECG.