Ph3 tail gate question :)

[underground375]

Hi all just finishing off the inner spraying on my new tail gate but before I go ahead and start the out side of the lid there's something im not to sure about.

I will be fitting the ph1 boot button onto the ph3 boot, so the question. Is the rectangle hole the button gos into the same size as the ph1? The little round hole you find just above will be filed.