http://social.technet.microsoft.com/Forums/en-US/mdt/thread/564b6afd-bc1f-4cf9-8706-1f8f13319ee1/
Essentially, the following will execute the [ByType] section which has 2 SubSections. %IsLaptop% is determined by the ZTIGather script. So, if found to be laptop, the variable %IsLaptop% would be "True" and it goes to the [Laptop-True] section.
In the [Laptop-True] section, it has another SubSection called %make%. Again, this variable is deteremined by ZTIGather script. You can use the %model% if you need to.
[Settings]
Priority=ByType,Default
Properties=MyCustomProperty
[ByType]
SubSection=Laptop-%IsLaptop%
SubSection=Desktop-%IsDesktop%
[Desktop-True]
MachineObjectOU=OU=Workstations,OU=Non-Thins,OU=Computers,OU=_Corp,DC= ***** ,DC=com
[Laptop-True]
MachineObjectOU=OU=Laptops,OU=Non-Thins,OU=Computers,OU=_Corp,DC= ***** ,DC=com
SubSection=%make%
[Hewlett-Packard]
MandatoryApplications001={cdf5444c-abce-4de2-8375-fc5b9c8ff523}
MandatoryApplications002={82747e6b-da40-4cd0-9d91-41b2b39f3a17}
[Default]
DeployRoot=*****
OSInstall=YES
SkipBDDWelcome=YES
SkipComputerName=No
SkipComputerBackup=YES
SkipAppsOnUpgrade=YES
SkipCapture=NO
SkipAdminPassword=YES
SkipProductKey=YES
SkipDomainMembership=YES
JoinDomain=*****
DomainAdmin=*****
DomainAdminDomain=*****
DomainAdminPassword=*****
SkipLocaleSelection=YES
KeyboardLocale=en-US
UserLocale=en-US
UILanguage=en-US
SkipUserData=Yes
SkipBitLocker=YES
XResolution=1366
SkipTimeZone=Yes
TimeZone=020
TimeZoneName=Central Standard Time
