thx for your quick replay
I'm using aem forms.
Your Answer: "You can achieve that functionality by creating the forms in accordion and doing the front end validation on the click of each accordion to check if form in existing accordion is filled or not."
Its is posible to have step by step instruction or a exampe file?
I'm a total novice when it comes to scripting.
Any suggestion for a beginner?
Thx
Niko