diff --git a/src/drc/drc/built-in-macros/_drc_engine.rb b/src/drc/drc/built-in-macros/_drc_engine.rb
index 617f5aa76..099062b27 100644
--- a/src/drc/drc/built-in-macros/_drc_engine.rb
+++ b/src/drc/drc/built-in-macros/_drc_engine.rb
@@ -141,7 +141,7 @@ module DRC
     # @brief Supplies the MOS3 transistor extractor class
     # @name mos3
     # @synopsis mos3(name)
-    # Use this class with \device_extract to specify extraction of a 
+    # Use this class with \extract_devices to specify extraction of a 
     # three-terminal MOS transistor
 
     def mos3(name)
@@ -152,7 +152,7 @@ module DRC
     # @brief Supplies the MOS4 transistor extractor class
     # @name mos4
     # @synopsis mos4(name)
-    # Use this class with \device_extract to specify extraction of a 
+    # Use this class with \extract_devices to specify extraction of a 
     # four-terminal MOS transistor
 
     def mos4(name)
@@ -163,7 +163,7 @@ module DRC
     # @brief Supplies the BJT3 transistor extractor class
     # @name bjt3
     # @synopsis bjt3(name)
-    # Use this class with \device_extract to specify extraction of a 
+    # Use this class with \extract_devices to specify extraction of a 
     # bipolar junction transistor
 
     def bjt3(name)
@@ -174,7 +174,7 @@ module DRC
     # @brief Supplies the BJT4 transistor extractor class
     # @name bjt4
     # @synopsis bjt4(name)
-    # Use this class with \device_extract to specify extraction of a 
+    # Use this class with \extract_devices to specify extraction of a 
     # bipolar junction transistor with a substrate terminal
 
     def bjt4(name)
@@ -185,7 +185,7 @@ module DRC
     # @brief Supplies the diode extractor class
     # @name diode
     # @synopsis diode(name)
-    # Use this class with \device_extract to specify extraction of a 
+    # Use this class with \extract_devices to specify extraction of a 
     # planar diode 
 
     def diode(name)
@@ -196,7 +196,7 @@ module DRC
     # @brief Supplies the resistor extractor class
     # @name resistor
     # @synopsis resistor(name, sheet_rho)
-    # Use this class with \device_extract to specify extraction of a resistor.
+    # Use this class with \extract_devices to specify extraction of a resistor.
     # The sheet_rho value is the sheet resistance in ohms/square.
 
     def resistor(name, sheet_rho)
@@ -207,7 +207,7 @@ module DRC
     # @brief Supplies the resistor extractor class that includes a bulk terminal
     # @name resistor_with_bulk
     # @synopsis resistor_with_bulk(name, sheet_rho)
-    # Use this class with \device_extract to specify extraction of a resistor 
+    # Use this class with \extract_devices to specify extraction of a resistor 
     # with a bulk terminal.
     # The sheet_rho value is the sheet resistance in ohms/square.
 
@@ -219,7 +219,7 @@ module DRC
     # @brief Supplies the capacitor extractor class
     # @name capacitor
     # @synopsis capacitor(name, area_cap)
-    # Use this class with \device_extract to specify extraction of a capacitor.
+    # Use this class with \extract_devices to specify extraction of a capacitor.
     # The area_cap argument is the capacitance in Farad per square micrometer.
 
     def capacitor(name, area_cap)
@@ -230,7 +230,7 @@ module DRC
     # @brief Supplies the capacitor extractor class that includes a bulk terminal
     # @name capacitor_with_bulk
     # @synopsis capacitor_with_bulk(name, area_cap)
-    # Use this class with \device_extract to specify extraction of a capacitor 
+    # Use this class with \extract_devices to specify extraction of a capacitor 
     # with a bulk terminal.
     # The area_cap argument is the capacitance in Farad per square micrometer.
 
diff --git a/src/drc/drc/built-in-macros/_drc_netter.rb b/src/drc/drc/built-in-macros/_drc_netter.rb
index 8f333b0c9..aa86fe84e 100644
--- a/src/drc/drc/built-in-macros/_drc_netter.rb
+++ b/src/drc/drc/built-in-macros/_drc_netter.rb
@@ -65,7 +65,7 @@ module DRC
     def initialize(engine)
       @engine = engine
       @netlisted = false
-      @connect_implicit = ""
+      @connect_implicit = []
       @l2n = nil
     end
     
@@ -186,7 +186,7 @@ module DRC
 
     def clear_connections
       @netlisted = false
-      @connect_implicit = ""
+      @connect_implicit = []
       _clear_data
     end
     
@@ -194,34 +194,21 @@ module DRC
     # @name connect_implicit
     # @brief Specifies a search pattern for labels which create implicit net connections
     # @synopsis connect_implicit(label_pattern)
-    # Use this method to supply a glob pattern for labels which create implicit net connections
+    # Use this method to supply label strings which create implicit net connections
     # on the top level circuit. This feature is useful to connect identically labelled nets
-    # while a component isn't integrated yet. If the component is integrated, net may be connected
+    # while a component isn't integrated yet. If the component is integrated, nets may be connected
     # on a higher hierarchy level - e.g. by a power mesh. Inside the component this net consists
     # of individual islands. To properly perform netlist extraction and comparison, these islands
     # need to be connected even though there isn't a physical connection. "connect_implicit" can
     # achive this if these islands are labelled with the same text on the top level of the
     # component.
     #
-    # Glob pattern are used which resemble shell file pattern: "*" is for all labels, "VDD"
-    # for all "VDD" labels (pattern act case sensitive). "VDD*" is for all labels beginning
-    # with "VDD" (still different labels will be connected to different nets!). "{VDD,VSS}"
-    # is either "VDD" or "VSS".
-    #
-    # The search pattern is applied on the next net extraction. The search pattern is cleared
+    # The implicit connections are applied on the next net extraction and cleared
     # on "clear_connections".
 
     def connect_implicit(arg)
-
       cleanup
-
-      if arg != @connect_implicit
-        if @connect_implicit != "" && arg != ""
-          raise("connect_implicit can only be used once")
-        end
-        @connect_implicit = arg
-      end
-
+      @connect_implicit << arg
     end
 
     # %DRC%
@@ -338,7 +325,14 @@ module DRC
 
       # run extraction in a timed environment
       if ! @netlisted
-        @engine._cmd(@l2n, :extract_netlist, @connect_implicit)
+        # build a glob expression from the parts
+        exprs =  @connect_implicit.collect { |c| c.gsub(/\?\*\[\]\{\},\(\)\\/) { |x| "\\" + x } }
+        if exprs.size > 1
+          expr = "{" + exprs.join(",") + "}"
+        else
+          expr = exprs[0] || ""
+        end
+        @engine._cmd(@l2n, :extract_netlist, expr)
         @netlisted = true
       end
 
diff --git a/src/lay/lay/doc/manual/lvs_connect.xml b/src/lay/lay/doc/manual/lvs_connect.xml
new file mode 100644
index 000000000..96151e5f5
--- /dev/null
+++ b/src/lay/lay/doc/manual/lvs_connect.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE language SYSTEM "klayout_doc.dtd">
+
+<doc>
+
+  <title>LVS Connectivity</title>
+  <keyword name="LVS"/>
+  <keyword name="LVS Connectivity"/>
+
+  <h2-index/>
+
+  <p>
+  </p>
+
+</doc>
diff --git a/src/lay/lay/doc/manual/metal_connections.png b/src/lay/lay/doc/manual/metal_connections.png
new file mode 100644
index 000000000..a5e184dfd
Binary files /dev/null and b/src/lay/lay/doc/manual/metal_connections.png differ