Scripting / Reusing connection support

[ylazy]

Is your feature request related to a problem? Please describe.
Related Problem: #16714.

Describe the solution you'd like
I need to have a way to run multiple commands at once, without losing connection. I'm making an automation task that create a directory tree on the server if not exist, download a file, then upload some files. It takes ~1.5 minutes to complete because cyberduck has to connect / disconnect 15 times.

Describe alternatives you've considered
Please give us a way to reuse the connection. It can be scripting support:

duck --script path/to/script.txt

script content:

--mkdir ...
--mkdir ...
--mkdir ...
--mkdir ...
--mkdir ...
--mkdir ...
--download ...
--upload ...
--chmod ...

Or at least, support multiple tasks in one command:

duck --mkdir ... --mkdir ... --mkdir ... --mkdir ... --download ... --upload ... --chmod ...

But this will be restricted by the command line length limit.

Thanks!