On Windows, if MtoA isn’t already installed, then the /S flag will do a silent install:
You can also specify an install location with the /D flag:
MtoA-220.127.116.11-2016.exe /S /D=C:\solidangle\mtoadeploy\2016-18.104.22.168
There’s no help, but I found the /S and /D via Google:
There is no silent install on OSX or Linux.
If another version of MtoA is installed, there will be some pop-up dialogs. You can get around that by doing a silent uninstall, like this:
or, if you want to keep the existing install around, you could do this:
reg DELETE HKCU\Software\Microsoft\Windows\CurrentVersion\Uninstall\MtoA2016 /f
After you delete that registry key, an MtoA install won’t detect an existing installation, so you get to keep the old install, and install a new version.