Key Flexfield's Segment List not working as expected

Question

Greetings. I am having problems using the Segment List attribute of a key flexfield bean. I want to restrict the segments that a user can enter values for. I would like to do this by preferably setting the relevant segments read-only, or alternatively hiding them.
According to the documentation it is possible to enter a segment list of the form:
structure code1|segment1's name|segment2's name...
If the Segment List is left empty, all segments will be shown, but if it is supplied, only the segments in the list will be shown.
Also, it is possible to make a segment read-only by adding the code ($RO$) after a segment's name, like this:
Structure code1|Segment1($RO$)|Segment2...
I have tried both, and in both cases the code combination text box continues to show and edit all segments. All segment names are still listed under the text box, too, even when omitted from the Segment List. But when the user clicks the flashlight search button next to the text box to bring up the search/selection dialog, the segments match the Segment List, so the behaviour appears to be different for the text box and the dialog.
If anyone could shed some light on this issue, it would be much appreciated! Thanks in advance :-)

Answer 1

I guess this snippet from OAF Dev guide will make you believe my words :)
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Key Flexfield Segment List
You may fill in the Segment List property if you want to show some, but not all of the segments in your flexfield. If you leave this property empty, all segments are rendered. The syntax is similar to that described for descriptive flexfields, only you should use structure codes to replace context values. The format is:
structure code1|segment1's name|segment2's name...||structure code2|segment4's name|segment5' name...
Segments within a certain structure code are separated by a single pipe, "|", while data from a different structure codes is separated by a double pipe, "||". The example below lists segments for just one structure code:
FWK Item Flexfield|Manufacturer|Product Family|Product
Read-Only Segments
You can add the read-only token ($RO$) after any of the segments in the list. For example, the ($RO$) designator below sets Segment1 in structure code 1 to be read-only:
Structure code1|Segment1($RO$)|Segment2...
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