Searching done and a lot of time on small test video. Last year did single 6 button/chapter menu on single layer DVD sucesfully, all singing and dancing moving image buttons.

Now have burner for double layer DVD, i.e. double capacity and PS V9.3.

So I would like (as do many) to double the chapters available as
2 button M1 to choose M2 or M3, 6 button M2 and M3 each with 6 buttons. Chapters are still long, so each one goes back to M2 and M3.

How do I get back to M1 from either M2 or M3 from any chapter, not just the last chapter?

Less desirable posible solutions are to just have M1 with 6 buttons, maybe cram in 8, yuck.

Sacrifice the last button on M2 and M3 to link back to M1 somehow, yuck.