Can't figure out Crashplan on Drobo 5N

I’m having trouble (using my Win8 machine) to ssh into my drobo to configure Crashplan. I’ve been following these links

I’ve changed the ui.profile file and have exited crashplan.

But I can’t figure out how to use putty properly, and I don’t know how to properly enter the command

ssh -L 4200:localhost:4243 yourusername@DroboIP

because using putty immediately ssh you into the Drobo. I can get in the drobo, but I don’t have any real way of setting up a terminal on my local computer to then type that ssh command into. Drobo, through the putty terminal, doesn’t recognize the ssh command, which makes sense because ive already ssh into it.

How do I configure my drobo 5n to work with crashplan???