[Freeswitch-users] Way to pass max-members from dialplan into conference?

I have setting max-members=10 in conference.conf.xml working. However, is there are way to pass in the max-members=10 from the dialplan/default.xml to mod_conference? I tried using action application="set" data="max-members=10" but it didn't work. Also tried action application="export" data="max-members=10" but it didn't work either.

From default.xml:

<extension name="nb_conferences"> <condition field="destination_number" expression="^(30\d{2})$"> <action application="answer"/> <!-- tried set and export here to no avail --> <action application="conference" data="$1-${domain_name}@default"/> Thanks, Robert