I feel this is a bit counter-intuitive. Is it possible to introduce some tweak to enable this? ``` r library(ggplot2) q <- quos(colour = Species) aes(!!!q) #> Error: Can't use `!!!` at top level aes(x, y, !!!q) #> Aesthetic mapping: #> * `x` -> `x` #> * `y` -> `y` #> * `colour` -> `Species` ``` Created on 2018-05-31 by the [reprex package](http://reprex.tidyverse.org) (v0.2.0).