I believe that the Quick Sheets will always stay on the main page but you can create folders and move notebooks into those folders. If you long press a notebook, a menu option will pop up at the top and you can select "move" and then navigate to the folder you want and place it there. That is all done on the tablet. The downside is that you can only do it one notebook at a time.
Remarkable
Useful Links
You can multiselect— long press the first one, then tap more
You are right. That is a something I will be happy to use. I feel like it didn't used to be that way. I recall trying to move several items and it would deselect and return to the normal screen. But I could have been doing something wrong. Thanks!
I think you can remove quick sheets now and move them. I do it all the time. Wholehearted Me on YouTube has dedicated video library 📚 to the Remarkable, updates and functions. Here is the link to her updated quicksheets video: https://youtu.be/iAZ2T-VttDo?si=rrrkO-vo3xFy73jK
Here is the video link on how to move a file: https://youtu.be/8jQIQT4kQGU?si=dPXVNCTEyS04wgtQ
With all things, some functionality has changed since she made initial videos but it’s a good resource if you are new to remarkable.
Yup. Make a new folder and I think it's a long-press for the context menu that will let you move it.