While I've never used Oracle forms, if all you want is to have entry points point to an already existing network share I would think something like this in Package.ini
Copy CMD.EXE entry point and edit it
Source=%drive_c%\orant\BIN\ifrun60.exe
Shortcut=Copy the existing package container
CommandLine= \\network resource, drive letter?\erp\erp@DB01
Again, no idea if that will work but maybe something to try.
good luck.