Warning: This topic does not affect the C generator.
First solution
Duplicate every format to appear in bold (with the same variable names so that the fields do not have to be moved again).
Enter 0 in the field "Number of lines before" in the duplicated format.
In the model, print first the original format then the duplicated one using the PRINT or PRINT_VIEWS instructions.
Example
Format to print in bold: F_OVR_TOTAL
Duplicated format: F_OVR_TOTALB, with 0 in "Number of lines before"
PRINT_VIEWS F_OVR_TOTAL
PRINT F_OVR_TOTALB
Warning: Here the format can only contain a single line.
Second solution
Go to the other format parameters screen and in the Function field set the DDS keyword to HIGHLIGHT.