@JayachandraSiddipeta no problems. I was on mobile when i responded, really wanted to share this image with you at the time. Given Constellation unlocks semantic URLs for just about every page and case, you could look to group them in this way too. Click on a page on the left, it then gives you a list of subpages.
The image below was created for another reason, see Switching portals and access groups in Constellation | Support Center, however, it can apply for this. I think its actually even better than a expand/collapse on left hand panel - here you can provide detail descriptions of what is in each landing page, not just a single short name. IF you have a lot of landing pages in your app, it opens up the risk users can’t find what they are after, so in this case a more tailored configuration might help?
