# Blue Locate Tool – Labels and Markings

You perform Labeling with the Blue Locate tool by using your mouse and clicking on the features you want to identify.

Once you have clicked on the feature, the feature identifier will be displayed, and you will need to assign an identifier to the feature, which will become the label for that feature. The identifier can be up to 140 Unicode characters. There are two ways to assign an identifier to a feature:

1. Click on the feature, and then using your keyboard, type a name up to 140 characters long.
2. Click on the feature, and when the editing cursor appears, paste the desired character string.

After adding an identifier, press the Enter key.

Once you have applied labels to the features in your images, and you have trained the tool, the tool will apply Markings to the areas of the image that it thinks match the feature. The difference between labels and markings is their appearance.

Note:

- You can toggle the display of labels and markings by using Ctrl + L (Toggle Labels) and Ctrl + K (Toggle Markings).
- Labeled features can also be moved by selecting the labeled feature and dragging it to the desired location.