There might be some issues with the current release or something else, where you need an older minor release of the software. Gladly they are still online and just hidden.
Posts
On my path to a peltier temperature controller, I stumbled upon the requirement to generate fast PWM signals using a MCU. Some pointers to good introductions, as well pages in the datasheet and sample code for ATmega32U4 (Arduino Leonardo) which I had laying around for tests.