Yes,
You are right. CB SUBS 3.0 + CB conditional 3.0 works (step by step + plan choice).
But in my case, my customer doesn't want to upgrade now (and she wants the step by step mode). i.e. CB 2.0.2+CB3.0.
So, keeping the step by step mode, I would like to activate the (other) plan n°2 by javascript or php. (Like that, the fields will be hidden or not according to CB Conditional).
Is it possible via API ?
How can I do that ?
Thanks.