Hello,

I don't think you can collapse them all. Out-Of-The-Box you always have one open.

Hi Sanjana,

In accordion i think we didn't have the option if you want to collapse the layouts at the beginning that means when you click on the layout then only it will open. Try this once hope it will help you.Go to the layouts properties and click on display header and title after that you will find the option called header type in that select the option called collapsible and uncheck the option expanded in load. So that it will open the content in the layout only when you click on it.

Thanks

Viswa