How to span a table to two columns?

[John Adams]

Hi,

I am using a two-column template. While reading a wiki page on tables, it
said that in order to span a table into two columns, I had to insert a
"Table Wrap Float" and gave a few options which I am not able to find in the
latest version. Can someone tell me how to span the table into two columns?

Also, is it possible to edit the source of the generated Latex? It shows me
the source at the bottom but doesn't let me edit it... Any ideas?

Thanks,
John