Often, the data to be mapped to an element is held in a user-defined memory variable and must be mapped from there.
Mapping an element to a memory variable
Expand the segment containing the element.
Perform one of the following:
Right-click the element and select Memory Variable from the drop-down list
Highlight the element and choose Map>Memory Variable
The Memory Variable pane displays.
Drag a memory variable from the Memory Variable pane and drop it onto an element.