According to this page Compare MDK Editions the Lite Keil edition does support Cortex-M0/M0+/M3/M4/M7.
Does STM's F4 series belong to the category of ARM M4? If yes, why the Lite MDK license does not let me to target STM F4 boards such as Nucleo?
(If this is relevant, I've already requested a license for STM F0 on my machine successfully, because earlier I played with STM F0 device. But now I need to switch to F4)