The Dashboard Designer UI includes the following panels:
Span style color: #000000; Available Content: from this panel, you can drag content onto the Dashboard Canvas. This panel includes the following sections: Span style color: #000000; New Content: lists the content elements you can create for your dashboard. Span style color: #000000; Existing Content: lists the Ad Hoc views and reports you can access from the Repository. Span style color: #000000; Filters: lists all filters associated with any resource added to the dashboard.
Span style color: #000000; Dashboard Canvas: this is where you create and edit your dashboard. It includes the following sections: Span style color: #000000; Title Bar: displays the name of the dashboard (in the figure above, the name is "New Dashboard"). Span style color: #000000; Toolbar Buttons: see table below for details. Span style color: #000000; Main Creation Area: build your dashboard. Drag elements from the Available Content panel here to get started. Icon
Name
Description
Preview
Click to display current dashboard as viewed by the end user.
Save/Save As
Hover cursor over icon to open a menu of save options.
Undo
Click to undo the most recent action.
Redo
Click to redo the most recent undone action.
Undo All
Click to revert the dashboard to the most recently saved state.
Parameter Mapping Click to open the Parameter Mapping dialog. See Parameter Mapping for more information. 
Dashboard Properties
Click to open the Dashboard Properties box. See Dashboard Properties for more information.
Show/Hide Grid
Click to display or hide a grid.
Show/Hide Filter Dashlet Pop-up
Click to display or hide a filter pop-up window. This button only appears when you enable filter dashlet pop-ups in Dashboard Properties.
Dashlets and Dashboard Elements
Each element added to your dashboard is called a Dashlet.
To add a Dashlet to your dashboard, simply select a content element and drag it onto the dashboard canvas. Dashlets can include the following elements, which you can access from the Available Content panel:
New Content:
Span style color: #000000; Chart: Allows you to create a chart within the Dashboard Designer. Span style color: #000000; Crosstab: Allows you to create a crosstab within the Dashboard Designer. Span style color: #000000; Table: Allows you to create a table within the Dashboard Designer. Span style color: #000000; Text: A free-form text entry field. Resizing this type of item changes the size of the font in the Label. Use free text items to add titles and instructional text to the dashboard. Span style color: #000000; Web Page: Any URL-addressable web content. The dashboard can point to web content and include it in a frame in a web page. For example, you might include a frame that points to the logo on your corporate website; when that logo changes, the dashboard automatically updates to reflect the branding change.
Existing Content:
Span style color: #000000; Reports and Ad Hoc views accessible to you.
Filters:
Span style color: #000000; If a report you include on the dashboard is designed to use input controls or filters, you can add that capability to the dashboard. The server maps input controls to one or more frames. For example, if multiple reports include the same parameter, the server automatically maps the corresponding control to each of those reports when you add the input control to the dashboard. Controls can also be manually mapped to custom URL frames.
In addition to the main element, your dashlet may contain the Maximize icon 
depending on how the dashlet properties are set. Click this icon to open the dashlet as a larger view.