LE auto cast spell mod request

[virginharvester]

hi, sorry for my bad English,

I like to request this mod if this mod not exist yet,
the mod is simple,
if you cast a spell that requires cast and release,
you no need to press and release the button manually,
you just need to press it once and the spell will cast and release automatically,
and if you release the button, the casting and release will stop,

optional :
it will be nice if the same spell,
but if you press a button(example 'shift') + mouse button, the auto mode will be on,
vice versa, if you only press the mouse button, the spell will cast normally

note: I not looking for :
-smart cast
-cast spell when equipping a weapon