GPO/GPP - Item level target - Security NESTED groups

I´m creating a GPP/GPO using the Preferences to map drive letter

Example:

1) Main Global Group = IT

1.1) Other Global Groups = IT-DB

1.2) Other Global Groups = IT-DEV

1.3) Other Global Groups = IT-INFRA

All 1.1, 1.2 and 1.3 global groups (DB, DEV and INFRA) belongs to the main global group IT

May i use the item target to match only the IT (main) global group to map the drive letter to all its members or the nested groups can´t be recognized by GPP and i´ll have to match the iten target to use all global groups?

i´m thinking about creating a map drive preference but to only map de drive letter IF a user belongs to a set of more than 15 global groups.

My 15 (or so) global groups belongs to a "main" global group (nested groups), therefore, all users belongs to both groups, the group to give access to resources AND the "main" global group, therefore it will be nice to create the item target only to the "main" global group, insted all 15 global groups (inside the "main", nested in it)

Windows 2008R2/WIndows 2012R2 DCs + AD in WIn2008 R2 forest and domain functional Mode