It is possible to have all the gradients in one folder, so you only have to open that one.
Open a folder
Select the gradients in it
Drag them in another folder
You can also select the gradients in alle open folders at once, but this will create subfolders.
Thanks Marja for your quick and helpful reply - still not sure why my list keeps repeating?
I've dragged everything out of the folders. Same applies to brushes - annoying that there is by default an extra step where you have to open all the folders and move brushes so you can see them straight away.
Thank you for providing a solution! Im happy now 🙂