I'm not familiar with partiko. I'm aware of it, but I've not used it before. Which browser are you using? If you're on chrome, then you can highlight the black dots, right click, 'Inspect' and on the right when the HTML coding pops up, highlight 'Password' and type in 'text' instead and hit ENTER. That'll change the black dots into your password.
Never lose your private keys. (the big long alpha numeric ones), and never use your master/owner key except if you need to change your other keys.