In gridEdit that works by using it in the customHTML

As a gridView column it can work but would depend on what makes it dynamic. Obviously it could not be something in the row data because each row can be different. However if you want it dynamic based on a url parameter it will work. For example putting it in the 'Caption' field. Like this: [sqlQuery:SELECT MyTable.name FROM MyTable where MyTable.ID=[numericQueryString:tid]]. In that example it would change the column name based on the url parameter 'tid'