This is an implementation/elaboration on Helder Sepulveda's [Notepad++ plugin]((https:/github.com/heldersepu). Using this plugin you will be able to maintain a list of shortcuts to files and folders of your choice.
This plugin is implemented as an input-friendly TextCommand, so you can set keybindings in your file by using the following syntax:
{ "keys": ["ctrl+shift+0"], "command": "favourites", "args": { "text": "0", } },
{ "keys": ["ctrl+shift+1"], "command": "favourites", "args": { "text": "1", } },
{ "keys": ["ctrl+shift+2"], "command": "favourites", "args": { "text": "2", } },
/ etc
Using this exact syntax will grant you access to 10 shortcuts, but there's also the option to use the Command Palette which grants arbitrarily many shortcuts, each separated by a comma, a space, or both (in either order).
Besides the possibilities introduced via the Command Palette, this package offers clever, or "Expandable", shortcuts (as well as the creation of relatives paths based on them); potentially saving you from having to rummage around to set your clipboard for longer trees.
It also allows for custom opening schemes such as always opening in a new/previous/original window.
To get a feel for this, look at the mockup.