Configure socks5 proxy without system change

[srhuston]

I'm looking to use CyberDuck as an S3 client for testing and browsing things, however I have one issue that I'm not able to resolve. In order to connect to the remote bucket, I have to proxy through a specific network. The documentation says I can configure a SOCKS5 proxy with the system settings, however I cannot (nor would I want to) do it that way as that would direct all (or most) traffic through that proxy and I only need specific connections to go that way. EDIT: failed to mention this is on macOS

For more detail, I make SSH connections to a couple different networks with the -D option and a port number, utilizing ControlMaster and ControlPersist multiplexed connections. I then spawn individual Chrome instances using different profile paths and with options like --proxy-server="socks5://127.0.0.1:$PROXY_PORT" --host-resolver-rules="MAP * 0.0.0.0 , EXCLUDE localhost" so that specific Chrome instance will have its traffic proxied to the remote end. I would like to have a way I can set a specific proxy setting in CyberDuck directly, or even via commandline options, rather than having to set it system-wide and create a list of exclusions that is basically "everything but this one host or network", which I'm not sure would even be possible.

[dkocher]

We do not currently allow to override system proxy settings ¹.

Footnotes

1. Allow to override default proxy settings in bookmark #5815 ↩