# Navigating with markers

The AspectJ development tools add markers to the files in your project at lines of code that give rise to advised join points and at the source locations of advice, inter-type declarations and other declarations. These markers are updated when the project is built.

The types of markers are as follows:

- Advised by
- Advises
- Aspect declarations
- Declared on
- Annotated by
- Annotates
- Softened by
- Softens

To navigate from a marker to a related location (e.g from an advised by marker to the advice in effect) right click on the marker. For each type of marker at that line there will be a submenu with the name of the marker (e.g. Advised By). Select this menu, then select one of its sub-items to navigate to the related location.

Aspects
AspectJ editor

Opening an editor on a type
Navigating with the Cross References view
Navigating with the Visualiser
Changing the image for advice markers
Hiding advice markers