Why don't you use Open in PuTTY?
https://winscp.net/eng/docs/integration_putty#open_putty_current

Hi,

The console window opens as a new dialog, the request is to open it as a third frame instead.

In the same way, as now the dialog is modal therefore requires the closure to continue working with the files then on open it back as to run another command then the command line is blank by default, in case of a repetitive command then the wish is on providing the ability to set one command as the default one and then the next time the dialog opens then this command appears in the box, not executed but appearing.

Thanks in advance
Kind Regards,