With the 6.2 upgrade... I think maybe the fieldname changes have created issue for me

I tried to mod Josh's attached file by only adding the variables for the Cols / rows/ and wrap, bu that gave me an error.
Just looking for the ability to have ediatbox big enough to reflect the information being typed in the Extra2 field.
Oh... where does a person who want to experiment with these changes keep up to date on variable names?