Arrow buttons and Drag and Drop
There are a number of ways to make planets visible or to hide them. If something is visible that you want hidden, drag that planet from the right side to the left as shown below:
You can multiselect by pressing either the SHIFT or CTRL keys on your keyboard. The CTRL key multiselects one at a time and the SHIFT key will allow you to select between the first click and the last click highlighting everything in between.
Once the planets are highlighted you can press one of the arrow buttons as shown below as an alternative:
You can also just double click on a planet and it will shift from one list to the other.
After you are done with the selection you must click on the correct Save button.
