The use conda package manager button in Pycharm. What's the difference between click it and not click it?

The use conda package manager button in Pycharm. What's the difference between click it and not click it?

If I don't click the anaconda logo, the packages list contain the tensorflow 1.7.0, which I can also see it in terminal using conda list command in my ml env. However, when I click the anaconda logo, tensorflow 1.7.0 disappear. I don't know what the two list of packages represent. Which one represent the real packages in my conda env? Whether I need to click the green circle and then click '+' to install packages or not need to click the green circle.

Thank you

If I click the green circle, tensorflow 1.7.0 disappear.