I think the 'B' key should work as a shortcut to open the build queue in-city. I have devised an AutoHotKey script to do just this thing:

You must have a 1.x version of AutoHotKey installed to launch or compile this. It is free, open-source software.
You can get a copy of that here:
(Direct Link)
https://www.autohotkey.com/download/ahk-install.exe
Site: https://www.autohotkey.com/

Save the following to a file from a Notepad instance:

BuildMom.ahk

Make sure you save it with .ahk extension or rename it afterwards from whatever.txt to whatever.ahk.

Important: Those numbers represent where it lands in the screen. IF this does not load the build queue for you and return the cursor to just left of center screen change them lower or higher until you get it to hit Build and return mouse to center-left screen. They correspond to the resolution you play the game at. Feel free to post comments with your working resolution x, y coordinate combos below to help other users who may be playing at a different res than my preferred 2560x1440

Now your script is ready. When you have AutoHotKey installed you can run it and it will pop up an icon in the taskbar. This lets you enable or disable it or just close out the script so it will stop working until you launch it again. When running this script works to make your B key launch the city build queue editing screen.

Note: You can toggle off (Suspend) this hotkey by pressing CTRL+B together. To re-enable, simply repress these keys. You can close it altogether by right-clicking the icon in your taskbar and hitting Exit.

You're welcome. If you find this helpful awards are appreciated.