Hello,
How do I convert a first row to titles, i.e. make the first row lose its record properties and become a unmoveable title?

I am not exactly sure what you mean by "unmoveable titles", but something like this happens when you use the Format as Table function. For example, if you have a table with date headings (i.e. the dates have actual numeric values) and use this function, the headings are converted to text.

Is that sort of what you want?