[v8i ss2] Text Height And Width Not Locked By Default For Dimension Style and Text Style (lock unlocked)

Trying to change the text size of a dimension for example: 

1) Open the tool Change Dimension.

2) Open dimension styles.

3) Click the black padlock so the height and the width are the same. This is off by default. Can the default be changed to on?

Recording a macro and clicking the lock didn't pick up anything useful. Also I don't see anything to do with the lock in the VBA object browser.