How to style multiple elements with the same style
1) Click on Add Style button in Style tab.
2) Create new style using New Style dialog.
3) Click on OK button - the defined style will be added into the style list.
4) Select elements for which you want to change the style.
5) Click on the created style.
6) Click on Appply button (instead of 5 and 6 you can double-click on the created style).
7) Style is applied for all selected elements.