How to Edit a Dashboard in Salesforce
You have a lot of options to work with when you're editing a dashboard.
The component is deleted.
You can easily change where a component appears using Salesforce.
The component moves to the designated position.
The Component Editor appears.
You can select the kind of chart you want to use for the component. If the report which the component is based on already has its own chart, you can use that. Just check the Use chart as defined in the source report box.
Resizing columns is just as easy as manipulating other components of Salesforce.
The column is resized.
Make the desired changes to your dashboard.
You’ll want to be able to return to your dashboard. It’s simple to save your project for later. If you're doing a lot of editing, you should save your changes periodically.
Salesforce exits editing mode and displays the changes you’ve made to the dashboard.