Feature request: Accessibility: Allow keybindings to control zoom

Part of how I use my computer moderately efficiently as a legally-blind user involves a one-handed keybinding to control zoom. I first asked about a keybinding to control this I think late in the development cycle for what became 4.12, and we found a solution. Here's the current iteration of that, and where I admit to not knowing how to get xfconf-query to show me a keybinding:

[aki ~]$ xfconf-query -c xfwm4 -p /general/easy_click
Super
[aki ~]$ grep xdotool ~/.config/xfce4/xfconf/xfce-perchannel-xml/xfce4-keyboard-shortcuts.xml 
      <property name="&lt;Super&gt;equal" type="string" value="xdotool click 4"/>
      <property name="&lt;Super&gt;minus" type="string" value="xdotool click 5"/>

Could we please have this directly added to xfwm4? I know that at some point Wayland is just "the future", even if you're not ready to pull the plug on Xorg support any time soon. Still, the clock's ticking for X, and I'd like to see this problem solved long before I need to find some solution somewhere because the major distributions are dropping X for any DE that's got a stable Wayland session.