[chaley]

Wait for the next release, then:

1. Convert the rules to advanced rules. You might want to duplicate them first. This will give you a rule that uses test(and...
2. Create a new advanced rule containing a "first_non_empty() function.
3. Copy the "test...and" lines and paste them as items in the first_non_empty in the order you want.

For example, given this advanced rule:

program:
test(and(
         strcmp(field('#enum2'), "no", '', '1', ''),
         strcmp(field('#enum3'), "no", '', '1', '')
    ), 'cry-icon.png', '');

the advanced rule with first_non_empty would be

program:
first_non_empty(
    test(and(
         strcmp(field('#enum2'), "no", '', '1', ''),
         strcmp(field('#enum3'), "no", '', '1', '')
    ), 'cry-icon.png', '')
)

If I (for example) add another branch to first_non_empty then it becomes

program:
first_non_empty(
    test(and(
         strcmp(field('#enum2'), "no", '', '1', ''),
         strcmp(field('#enum3'), "no", '', '1', '')
    ), 'cry-icon.png', ''),
    test(and(
         strcmp(field('#bar'), "no", '', '1', ''),
         strcmp(field('#flapjack'), "no", '', '1', '')
    ), 'foo.png', '')
)