Coefplot: Increase gap size between subgraphs, decrease font size of subgraph labels, and remove legend

[Emil Alnor]

In coefplot, can someone please tell me how to:
1) Increase the gap size between subgraphs (I need to do this because, in my real data, the rightmost x-axis label in the left subgraph overlaps with leftmost x-axis label in the right subgraph).
2) Decrease size of font of subgraphs labels ("Trunk" and "Weight" in the example below)
3) Remove the legend in the bottom of the graph ("price_t", "mpg_t" and "headroom_t". Somehow this is removed when I only make 1 subgraph and use 'legend(off)', but remains even though I specify 'legend(off)' in what I believe is the global options.

Here is an example:

sysuse auto, clear
reg price trunk
estimates store price_t
reg mpg trunk
estimates store mpg_t
reg headroom trunk
estimates store headroom_t

reg price weight
estimates store price_w
reg mpg weight
estimates store mpg_w
reg headroom weight
estimates store headroom_w

coefplot ///
    (price_t, aseq(Price)) ///
    (mpg_t, aseq(Miles per gallon)) ///
    (headroom_t, aseq(Headroom)) ///
    , bylabel(Trunk) || ///
    (price_w, aseq(Price)) ///
    (mpg_w, aseq(Miles per gallon)) ///
    (headroom_w, aseq(Headroom)) ///
    , bylabel(Weight) || ///
    , swapnames legend(off) xline(0) byopts(xrescale)

I know this is many request, just help with one of them would improve my graph. Thanks!

[Andrew Musau]

coefplot is from SSC, as you are asked to explain (FAQ Advice #12). See highlighted:

sysuse auto, clear
reg price trunk
estimates store price_t
reg mpg trunk
estimates store mpg_t
reg headroom trunk
estimates store headroom_t

reg price weight
estimates store price_w
reg mpg weight
estimates store mpg_w
reg headroom weight
estimates store headroom_w

set scheme s1mono
coefplot ///
    (price_t, aseq(Price)) ///
    (mpg_t, aseq(Miles per gallon)) ///
    (headroom_t, aseq(Headroom)) ///
    , bylabel(Trunk) || ///
    (price_w, aseq(Price)) ///
    (mpg_w, aseq(Miles per gallon)) ///
    (headroom_w, aseq(Headroom)) ///
    , bylabel(Weight) || ///
    , swapnames legend(off) xline(0) byopts(xrescale imargin(*10)) ///
    nokey subtitle(,size(vsmall)) 

Res.:

[Emil Alnor]

Andrew Musau once again, thank you for your effective help