In the query plan of the query editor, it should be kept last selected plan view (text or graphical mode) for user convience

In the query plan of the query editor, it should be kept last selected plan view (text or graphical mode) for user convience.
Plesae check attached image.
If you use the graphical mode by clicking the button, you can see the graphical mode when you open a query plan on the next time.
If you use the text mode by clicking the button, you can see the text mode when you open a query plan on the next time.
Therefore, it's mode should be stored on last selection mode.