LLD macros do not seem to work in Flexible Interval definitions

Hello,

I have defined LDD rule which receives the following JSON

{
    "data":[
        {
            "{#SERVICE}":"Zabbix Agent",
            "{#DESCRIPTION}":"Zabbix Agent",
            "{#TIME}":"1-5,05:59-20:58",

        }
    ]
}

and I was expecting the time definition to be picked up in the Flexible interval definition.

The GUI accepts the {#TIME} value as a correct time interval (actually I think it does not do any validation at all, but then the
1) You cannot click on the LDD created item to validate the macro expansion
2) The behaviour shows that the Flexible Interval with the {#TIME} macro is ignored.
3) Log shows the macro expansion did not happened.

29274:20120709:122203.603 wrong delay period format [50/{#TIME}]

Is it possible to enable it? It is essential to monitor services that are only available at certain time, and instead of doing it manually, LDD makes it much easies to handle

Regards
Alessandro