[Freeswitch-users] Export all user vars to the b leg?

Good day, wondering if there is a one-liner method to export all user-specific variables to the b-leg of the call. I'm referring to all the vars I set within <variables> section of <user> in the directory. I could've done it in the dialplan, but then I need to do it once for each var: <action application="export" data="foo1=${foo1}"/> ..... <action application="export" data="fooN=${fooN}"/> Many thanks! -Victor