Just copying the Glyssen folder from Documents didn’t do it.
On the Share menu, Glyssen offers command to Import and Export. If you want to transfer a Glyssen project to another computer or share it with someone else, export a glyssenshare file. That file can then be imported on the other computer.
Note that the newly imported project will not be connected to the original project in any way. If changes are made to both projects, there is no automated process for synchronizing them later.
Also note that certain kinds of changes (e.g., changing the quotation mark settings) will require access to the original source (Text Release Bundle or live Paratext project). Glyssen will let you know if you are trying to do something that requires this.