Would like to be able to copy and paste in my connection string into my terminal easily after generating a droplet.
This isn't completed. The suggestion was for "_after_ generating a new droplet". What already is only relevant before new droplets are generated, and useless for granting access to new clients machines later.
This already exists, just add your public SSH key to your ssh_keys in the control panel tab and then when you create a new server you can select which key you want to automatically add to it during creation.
You won't be notified about changes to this idea.