Custom output file Manager

This is a tool that lets you set paths for Blender's file output nodes.
When there are a lot of nodes, just changing the name of an image can be a lot of work.
Basic setting words are set in the list view from the beginning.
You can also customize them if necessary.
Settings can also be saved as external files and loaded.

Be sure to put a "$" at the beginning of any custom words.
Set the words that will actually be entered. Continue. Python code is also accepted.