This was almost a dealbreaker for me during the trial, but I noticed a workaround that worked.
1) Create a Folder Portal fence (e.g. fence contents are based on a folder of shortcuts).
2) On the fence Sort By Date modified and in my case reverse, so newest shortcuts appear first.
Then you basically ensure your date modified on each shortcut corresponds to the order you want chronologically from new to old, i.e. anything you want to take to front you can open the shortcut's properties, type a space in Comment then delete it, then Apply, and the modify date will update to current date/time and take it to front (press F5 on the fence to refresh it).
Agree it's a strange omission, especially when they implemented drag and drop re-ordering.
