Simple Bounding Box Extension - README

I developed this tool initially for personal use, to quickly set up a white background for selection exports without altering the overall document settings.
Features:
-    Automatically creates a bounding box around selected objects or the entire page with grow / shrink percentage.
-    Optional horizontal and vertical guides for easily finding the bounding box center (for snapping etc.).
-    Allows adding the bounding box to a new layer (created at the bottom) or the current one.
-    Supports multi-page document.

I thought this might be useful for others, so I'm sharing it with the community. 
Feedback and suggestions are welcome!

Thanks!

Update (July 6, 2024)
This now includes options to 1) add separate boxes around selected elements (groups etc.) and individual objects (shapes, paths and texts within groups) 2) retain transformation - checking which will also create a bounding box with the same transformation as the element or object (e.g. box with aligned rotation around a rotated text object)