Expand All and Collapse all in section layout

Question

Hi Folks, 
 
 How can I have expand-all and collapse-all feature as a button/link in my interface which is having multiple section layout. I know we have is collapsible and isinitiallycollpased parameters which are present. But that works only on page load. How can I make it dynamic which is work on clicking of a button or link? 
 
 Regards, 
 Ghanashyam

GopalK · Answer

Hi Ghanashyam, you can use richtextdisplayfield where you can use icons like chevron-up and down and configure dynamic link into it and then use a Boolean local variable into link's saveInto parameter and then add a condition in your interface to show rest of the section layout based on that local variable value.

Mike Schmitt · Answer

This is one of my "feature request backlog" items - the ability to control the collapsed-state of collapsible components (sections, boxes, etc) from external controls (like just adding a parameter called "isCollapsed" which can be set to a variable which, when changed, causes the component to follow that behavior. or something). 
 Unfortunately it's not currently possible without using some workarounds that basically involve building your own "fake" component to replace the OOB component (similar to what Gopalk already described).

Mike Schmitt · Answer

There are no plans that I'm aware of to actually implement this - you'd need to reach out to Appian and request the funcitonality and/or see whether it's on their roadmap, though FYI this is usually a very slow process.