Sorry to be long in replying to this.
Click on the name of a recipe in the BrewLog or any Recipe folder.
Then right click to get the menu (Add Folder, cut, copy, Copy to Cloud, etc.
There is an option 'Edit iin a new window' that is greyed out. I used to use this to open a new window so that I
could see two recipes to compare them.
Is there any other way to compare two recipes ?