# Add / Edit Maintenance

To add or edit a maintenance do the following steps:

- Mark the appropriate layer as active layer in the layer list.
- Activate the Edit Asset tool.
- Start an edit session activating the Toggle Editing - tool.
- Select the feature you want to add a new maintenance to or whose maintenances you want to edit
- Choose the Maintenances tab
- To add a new maintenance choose the following icon:
- To edit an existing maintenance choose the following icon:
- To delete a maintenance choose the following icon:

Figure 1: Manage maintenance dialog