compose function objects

hi, i've a question regarding the compose function objects. i was wondering if there is something like compose_f_x_gy etc? i know there's only the compose_f_gx_hy function object. but then i would need g(x) = x, so my question: is there another way to get the same result like using g(x) = x or writing a compose_f_x_gx? thanks, daniel