From the original post :
You can simply open several patches and klick the "live" button of each one. They are going to play at the same time.
and how will one close patches in standalone ?
For me this didn't work. I had to copy the contents of the folder without the folder.
`$ sudo cp -r gcc-arm-none-eabi-9-2019-q4-major/. /opt/Axoloti/app/platform_linux/