Populating the "number format" and "calculate" field properties?

Question

I've been making a lot of Acrobat forms with an extremely large number of form fields (as in, over a hundred or more per form).
Each field has to have these properties:
-Set to Number format, with 4 decimal places specified
-Set the Calculate property with a simplified field notation (field1*field2), to perform multiplication, or, it's set wtih the "value is the (product) of the following fields" function.
Is there a way of copying these attributes to already pre-existing fields?  It appears that for already existing fields, if you want them all to have these same attributes, you have to set them one by one-- very tedious.  If you multi-select all fields at once, it doesn't let you set them all to the same calculation setting, and it doesn't even let you set them all to number format.
So, up till now I've simply made one (or a few) fields, set them to these properties, and then populated them by duplicating the fields, but-- I still then have then to go in and re-name every single field, so that each is a unique field-- also very tedious.
Is there some way that I don't know about, that would allow me to set these properties to multiple pre-existing fields at the same time?

Answer 1

Unfortunately, no.
However, you can set the the field's calculation formula using a simple script.
Let's say your fields are called field1, field2, field3, etc. You can then run this code from the console:
maxFields = 100; // let's say you have 100 fields
for (i=1; i<=maxFields; i++) {
     f = this.getField("field"+i);
     if (f) f.setAction("Calculate", "event.value = this.getField('x').value * this.getField('y').value;");
Of course, you can adjust the formula to your own needs.
Make sure you use single quotes inside of the script when you want to specify a literal string.