AX 2012 Master Planning

Hi,

I have a requirement where i have to generate planned orders group wise based on some customized field.i m fresher in ax with 6 mnths experience.plz help me out as hw to start…

lets say my customized field has 3 lines as test1,test2,test2 with qty as 10,2,2 then planned orders should be test1-10 & test2 with qty 4.

plz help me…