Hello.

Is there a built in option of adding an Expand/Collapse all Button to my report?

I have a report with few groups and I want to give the user a simple way to expand all of them for easy view or collapse all of them so he can see only the groups header.

I thought about using an expression in the hidden property of the groups and try to control it with parameters but its looks like a lot of work.
I also predict problem with it if I'll try to sort the table and the page will refresh it self every time.

Is there something "of the self" for it?

Thank.
Roy.