Reports :: Find And Replace Text Across Many Text Boxes In Report Design

Is it possible to use find and replace to modify text in report design - or else is there something else I can do to get the same effect? I have a really useful report and I want to modify it for use with a different dataset. To do that I will need to change the text in over 150 text boxes. I have seven different fields which each occur over 20 times in the control source formulas in the text boxes, because they are used in different ways in different calculations. If this was excel I could do a simple find and replace to change e.g. every reference to fieldname OLD to fieldname NEW, but I cannot see how to do that within access report so am haveing to click on each text box in turn, go to properties and edit the text box .

I am trying to switch to a more general naming system in the modified report so then I will be able to assign data with the required fieldnames for the report within a query. But the report I am starting with has field names based on years 2013, 2014, 2015 etc.I want a quick way to change each reference to those field names to my more generic new field names.