How to center tables in the page

As a scrivener’s newbye I’d like to write technical articles with it.
Now, I copied slices of an MS word docx document containing tables (inserted as excel objects) and figures into the scrivener’s editor. While initially the untouched tables were beautifully centered in the middle of the page it happens that if I modify the font size or the width of a column in a table it moves to the left margin of the page and I’m apparentely unable to put it in the center of the page again.
How can I make it?
Ciao from Rome

Hi Vittorio,

I don’t think there’s a way of doing this, sorry. The tables are part of the OS X text system (the same as in TextEdit) and are fairly basic.

All the best,