Thanks for using Notezilla .
You can try different things mentioned below:
Imagine you have a total of 10 notes on desktop. You hide 7 of them and keep only 3 visible.
If you choose to clear the whole desktop using "Hide all notes", you can bring only the 3 back by using the "Undo hide all".

Another option is switch notes on the desktop based on a memoboard or a tag.
You group 3 notes inside a specific memoboard or tag. Then use the below "Show notes by memoboard/tag" option. To show those notes and remove everything else. Then you use the "Restore default" option to bring back to the previous state.
