[YKH =]]

It possible

It is because the code :

    if (!((pev(id, pev_flags) & FL_ONGROUND) && (pev(id, pev_flags) & FL_DUCKING)) || fm_get_speed(id) < 10)
        return false

    // Not doing a longjump (added bot support)
    if (!(buttons & IN_USE) && !is_user_bot(id))
        return false

So, i do not need to run and press +JUMP

When i be a headcrab, I just stand(always duck) on the ground and press E (IN_USE)

then i will leap to the target=]