Definitely, you can edit the landing pages that are already published.
Choose the published landing pages that needs to be edited
- Expand the Action tab
- Click on Visual edit
- Modify the contents or images
- Click on ” Save and Close” option
After you do the modification to published landing pages, in order to see the modified contents, you need to republish the landing page.
- Expand the Action tab
- Click on “Republish page” option
Now all the new changes will be available on your landing page