To open the attribute list for a layer, right click on the vector layer in the Control Center, and choose Edit Attributes....
This displays the Attribute Editor window with a table view displaying the attributes for all features in the layer. The attribute list displays columns in the order that the attributes are listed in the layer. The window title bar lists the name of the layer that the list is generated from.
The Attribute Editor window can be floating, or docked, including docked with multiple tabs showing different windows.
To edit an attribute in the tabular view, click on the cell in the table to select it. Then click on it again to enable editing.
Enable the 
Synchronize Feature Selection tool to sync the selection between the digitizer tool and the highlighted rows in the list.
Use the SHIFT or CTRL keys to highlight multiple rows, for use with the toolbar buttons like Edit, Delete, and the right-click context menu.
Click a column name to sort the column in ascending order. Click the column name again to sort in descending order. Right-click on the Column Name and un-check listed columns to hide them from the table.
Press the Search button to limit the list to rows that match a search criteria.
Note: Special Attributes values, including <Feature Name>, <Feature Type> <Description> and <Index in Layer are not editable from the Attribute List.
Note: There is a limitation on the number of features that can be listed.
For Global Mapper 32-bit the feature limit is 1 million, for Global Mapper
64-bit the feature limit is 5 million.
Edit Attributes
To edit an attribute value click on the cell in the table to select it. Then click on it again to enable editing.
To edit multiple rows, select the rows using the CTRL and SHIFT keys. Then choose the Edit button on the toolbar, or right click and choose Edit Selected Features... This will bring up the Modify Selected Features dialog, which will bulk edit the attributes and properties of the selected features.
Table display
Use the SHIFT or CTRL keys to highlight multiple rows, for use with the toolbar buttons like Edit, Delete, and the right-click context menu.
Double-clicking on an item in the list will recenter the view on that object.
The bottom of the table displays the count of rows, and the number of selected rows.
The column names are listed in the order that they are found as each feature is processed in the layer list. Search Results for multiple layers are listed with the attributes in alphabetical order.
Click a column name to sort the column in ascending order.
Click the column name again to sort in descending order.
Right-click on the Column Name at the top of the table, and un-check listed columns to hide them from the table.
To resize a column, drag the divider between the Column Names at the top of the table. The cursor will display an arrow icon when the Right click on a row and chose the Shrink all columns to minimum size option to make all columns small. Double click on the divider between the columns to expand the column width back to the full with of the values.
Search
When the search tool is launched from a layer attribute list, the default search will search within the layer only.
If the search is changed to Search All Enabled Layers or Search Onscreen Features Only, the Attribute Editor window name will update to Search Results, rather than the layer name.
Save to CSV
Press the Save to CSV button to save the attributes in the selected rows to an external tabular format. CSV and TXT files are readable by text editor applications, like notepad. They can also be imported as tables in applications like Microsoft Excel.
The export will provide an option to choose the delimiter:
Right-click on the selected rows for the additional options: Copy the Selected Features to the Clipboard and Copy the Selected Results to the Clipboard as Text.
Selection and Editing
Use the SHIFT or CTRL keys to highlight multiple rows, for use with the toolbar buttons like Edit, Delete, and the right-click context menu.
Note: For data loaded from external files, all edits will be stored as changes in the workspace. The original file is not modified until a layer is exported. For more information see Creating and Editing Features
Edit
Select rows in the list, then choose the Edit button to edit values for multiple selected features. This bring up the Modify Selected Features dialog which can be used to edit multiple features attributes and properties. With Lidar points selected, this will bring up the Edit Lidar Point(s) dialog.
To edit individual values, click in the cell, then click again until the cursor appears to enable editing.
See also Un-doing Digitization Operations
Special attributes like <Feature Name> and <Feature Type> are not editable from the Attribute Editor.
Delete
Select rows in the list and press the Delete button to delete the table row and associated vector feature.
See also Deleting/Undeleting Features
Select All
The Select All button will select all features in the current search.
If the Attribute Editor Synchronize button is enabled this will also select all of the listed features with the Digitizer tool, and enable the Digitizer tool. This will override other existing selections.
See also Select All Features in Layer(s)
Clear Selection
This will clear the row selection in the attribute list. If the sync is enabled,
Synchronize Feature Selection with Main Window
This toggle will sync the selection between the digitizer tool and the attribute editor. When the sync is first enabled, it will preference features selected on the map with the digitizer tool.
Context Menu
Right-click on a numeric column in the Vector Search and choose this option to see a dialog report of the Count of features that contain a value for the attribute, and Minimum, Maximum, Average, Standard Deviation and Sum of the attribute values. The results will also be copied to the Windows clipboard.
The geometric features, including attributes, will be copied to the Global Mapper clipboard. They may be pasted to a new layer in the current Global Mapper workspace, or a new instance of Global Mapper using the CTRL+V keyboard shortcut or the Edit Menu.
The attribute table for the selected features will be coped to the Windows clipboard as comma delimited values.
If multiple line features are selected in the results list, the context menu will contain an option to combine those line features into new line features if the selected lines connect at their endpoints. Options for copying the selected features to the clipboard and selecting the selected search results with the Digitizer Tool for further editing will also appear if any results are selected.