This tool will search the current folder for images that have a tag area matching the entered tag name. It will then assign the flag value chosen to those images. You can then use the filter bar to filter the displayed objects on the flag value selected.
This will make it easy to find and work on images with a specific tag name. Once changes have been made the flag status can be removed or reset by running the tool again. Alternatively, you can select all images and manually apply the desired flag value.