Some changes to the VM commands are necessary. To jump from VTS1 to VTS2, it has to go through the VMG domain for redirection, i.e. VTS1 -> VMG -> VTS2 -> VMG -> VTS#.

So this is what you do:
1. In Video Manager/Menus/PGC2 (I will refer to this as VMG PGC 2 from now on), delete all pre-commands. Add "Jump VMG Title 2" (defined in VMG Titles pane) to jump to VTS2.
2. In VTS1/Program Chains/PGC1, delete the first post-command. Then change the remaining post-command to "Call VMG PGC 2 (resume cell 1)".

So if there are more VTS, follow similar steps with some changes. Say to jump from VTS2 to VTS3:
1. First, create a new VMG PGC 3 (Right-click on Video Manager/Menus and select "Add PGC"). Then add pre-command "Jump VMG Title 3" to jump to VTS3.
2. In VTS2/Program Chains/PGC1, delete the first post-command. Then change the remaining post-command to "Call VMG PGC 3 (resume cell 1)".

Hope you see the pattern now.