OK,
You still should be able to do this yourself. I don't normally use Info Assist. You should be able to find this info under the HELP documentation.
If you've not been to training, I would suggest that.
Here's what I found:
Procedure: How to Assign a Numeric Format
With a report open in Live Preview, right-click a virtual or column Measure field, and select Edit Format.
The Field Format Options dialog box opens.
From the Field type list, click one of the following options:
Floating Point (default length 7.2)
Integer (default length 5)
Decimal (default length 12.2)
Packed (default length 12.2)
If the selected field matches the selected format type, its current length appears in the Field Length field. Otherwise, the default length appears in the Field Length field. The Decimals field shows the numbers of decimal places for Floating Point, Decimal, and Packed.
To assign a different length, specify it in the Field Length field for format types as follows: 1-9 for Floating Point, 1-11 for Integer, 1-20 for Decimal, and 1-33 for Packed.
To assign a different number of decimal places for Floating Point, Decimal, or Packed, specify the number in the Decimals field.
Click OK to close the Field Format Options dialog box and return to the Results panel.
The new format appears in the previously selected column.
WebFOCUS 8.1.05
Windows, All Outputs