asterisk users - Mar 2009 - macro on ring group

Hi All,

For my setup, i am using a macro to dial a certain extension not just a 
simple Dial(SIP/exten).

I would like to setup a ringgroup, for now what i only found is by 
simply dialing like this Dial(SIP/exten1&SIP/exten&SIP/exten3) but i 
cant use since i'm using a macro, is there a way i can call multiple 
macros at the same time like the way Dial calls it?

Hope i'm not confusing. Thanks in advanced.

regards,
Nhadie