Hello
Not sure you used the correct system variable, and I wouldn't use a system variable there but label that 'menu' slide and jump back to that menu slide.
I suppose the sequence of clicking one of the buttons is not imposed, right?
Create a user variable for each button that will track if it has been clicked. For two buttons: v_one and v_two, initially set to 0.
For the buttons create a standard advanced action like this (example for first button):
- Assign v_one with 1
- Jump to chap_one where chap_one is the slide label of the first slide of chapter one
You need a button or click box on the last slide of chapter one - and same for last slide of chapter two that will trigger the conditional action:
IF v_one is equal to 1 AND
v_two is equal to 1
Jump to end_slide which is the slide after the two chapters
ELSE
jump to menu_slide
Have a look at my blog, it has its focus on advanced actions and variables. Here is an example:
http://blog.lilybiri.com/template-for-reusing-script
Lilybiri
