There’s a new custom training option in Memory League in which the system automatically advances through the memorization items so you don’t need to press the arrow keys.
Just set the Auto Advance Total Time to the total number of seconds you want to take for memorization, and the system will automatically move through the memorization groups at the speed required to achieve that total time.
If you can’t keep up during memorization, just press an arrow key or click an arrow button to turn off the auto advancing and switch to manual mode.
Thanks to @Erol for the suggestion.
Oh, and there is also a new option to customize the Maximum Recall Time, which is useful if you’d like more than 4 minutes for recall.