WinSCP does not have such option atm.
But if you are using SFTP/SCP connected to a *nix machine, you can define a custom command.
https://winscp.net/eng/docs/custom_command
I have added examples to the documentation:
https://winscp.net/eng/docs/custom_commands#chmod
But if you are using SFTP/SCP connected to a *nix machine, you can define a custom command.
https://winscp.net/eng/docs/custom_command
I have added examples to the documentation:
https://winscp.net/eng/docs/custom_commands#chmod