When signed into CSD and you have the module open that you want to bookmark, press the down around in the top black bar by "Cloudsuite Distribution" and then select 'Bookmark this page'
Enter the name of the module in Name and click <Save>.
To access the Bookmarks, select the 6 dots square in the top left of the screen and the Bookmarks menu should be listed below with your saved bookmarks. Select the bookmark title to open the module.