Default table width (set to 200px). Where can I set my own?

Hi all,

I've done some searching here on the forum , but did not find an answer to my question (till now)

When in cfeditor, and when creating a table, it's always set to a default width of 200 pixels (Table width), Rows 3 and Columns 2.

Anyone here who might know when I can change these default values?
I would like to set them to an other default value.

Thank you.