I think debug keys are new for UE5? I used the regular key nodes in 4.27 and it worked to detect if a shift, control or alt key was held down like this:
But daaaaaaamn Epic needs to put some sort of decoration on nodes which have crap in the details panel… either that, or do that “add pin” thing for everything so it becomes consistent.
Also, I don’t know if it’s just me, my monitor resolution or size, but the default layout sort of “hides” the details panel as well: