Using multiple modifiers inside if_tap and modify

[rRobis]

I started out not long ago with input remapper, maybe i missed something, but i can't make this work:
I want
Alt+X - single tap
CTRL+ALT+SHIFT+x - hold

How do i do this?

if_tap(
modify(Alt_L,
key(x)
),
modify(Alt_L,
modify(KEY_LEFTCTRL,
modify(Shift_L,
key(x)
)
)
)
)

[rRobis]

Sorry, right after posting, i noticed that instead of key(x) i had key(v) 🤦.
Just in case someone finds this useful - i'll leave it here...