Pretty Sure you are talking about MIMIX
for instance , Don’t know what you are talking about
1.1DG can only be attached by 1 Journal
2.Different DG can use the same Journal
3.You can switch 1 DG at a time, no need to switch all the DG
4.The DG can be switch at MIMIX/MIMIX –> WRKDG –> Select the DG you want to switch.then put “16” into the DG you want to switch
5.Yes,you can sync different libraries wiithin one system.