To remove specific table column in the frontend manager dashboard is very easy.

Copy this code to the theme functions.php file.

Note: this hooks is available only in Frontend Manager Add on version 5.3.3 +

    // Remove Shipment table Hook for Tracking Number
    remove_action( 'wpcfe_shipment_before_tracking_number_header', 'wpcfe_shipment_number_header_callback', 25 );
    remove_action( 'wpcfe_shipment_before_tracking_number_data', 'wpcfe_shipment_number_data_callback', 25 );

    // Remove Shipment Shipper / Receiver Column
    remove_action( 'wpcfe_shipment_after_tracking_number_header', 'wpcfe_shipper_receiver_shipment_header_callback', 25 );
    remove_action( 'wpcfe_shipment_after_tracking_number_data', 'wpcfe_shipper_receiver_shipment_data_callback', 25 );

    // Remove Shipment Type Column
    remove_action( 'wpcfe_shipment_table_header', 'wpcfe_shipment_table_header_type', 25 ); 
    remove_action( 'wpcfe_shipment_table_data', 'wpcfe_shipment_table_data_type', 25 );

    // Remove Shipment Status Column
    remove_action( 'wpcfe_shipment_table_header', 'wpcfe_shipment_table_header_status', 25 ); 
    remove_action( 'wpcfe_shipment_table_data', 'wpcfe_shipment_table_data_status', 25 );

    // Remove Shipment View Column
    remove_action( 'wpcfe_shipment_table_header', 'wpcfe_shipment_table_header_view', 25 );
    remove_action( 'wpcfe_shipment_table_data','wpcfe_shipment_table_data_view', 25 );

    // Remove Shipment Print Column
    remove_action( 'wpcfe_shipment_table_header_action', 'wpcfe_shipment_table_header_action_print', 25 ); 
    remove_action( 'wpcfe_shipment_table_data_action', 'wpcfe_shipment_table_action_print', 25 );

    // Remove Shipment Update Column
    remove_action( 'wpcfe_shipment_table_header_action', 'wpcfe_shipment_table_header_action_update', 25 ); 
    remove_action( 'wpcfe_shipment_table_data_action', 'wpcfe_shipment_table_action_update', 25 );
    
    // Remove Shipment Delete Column
    remove_action( 'wpcfe_shipment_table_header_action', 'wpcfe_shipment_table_header_action_delete', 25 ); 
    remove_action( 'wpcfe_shipment_table_data_action', 'wpcfe_shipment_table_action_delete', 25 );