Question
How to set SYSCLOCK to 400 MHz using STM32CubeIDE?
I am using a NUCLEO-H743ZI board.
Using STM32CubeMX, I was able to set SYSCLOCK to 400 MHz like so:

With STM32CubeIDE, it won't allow me to do the same:

What should I be doing here instead?
STM32CubeIDE has been really frustrating.