diff --git a/programs/debug-fdo.inc b/programs/debug-fdo.inc
index 40b2cb00e4..a4ec21b31c 100644
--- a/programs/debug-fdo.inc
+++ b/programs/debug-fdo.inc
@@ -372,6 +372,17 @@ macro DEBUGF _level,_format,[_arg] {
  end if
 }
 
+macro DEBUGFG _level, _group, _format, [_arg] {
+ common
+  if _group eqtype
+   DEBUGF _level, _format,_arg
+  else
+   if _level >= _group
+    DEBUGF 999, _format,_arg
+   end if
+  end if
+}
+
 macro __include_debug_strings dummy,[_id,_fmt,_len] {
  common
   local c1,a1,a2
diff --git a/programs/develop/examples/loggroups/loggroups.asm b/programs/develop/examples/loggroups/loggroups.asm
new file mode 100644
index 0000000000..8f5ca85eeb
--- /dev/null
+++ b/programs/develop/examples/loggroups/loggroups.asm
@@ -0,0 +1,41 @@
+use32
+    org 0x0
+    db  'MENUET01'
+    dd  0x01,start,i_end,e_end,e_end,0,0
+
+__DEBUG__ = 1
+__DEBUG_LEVEL__ = 2
+
+LOG_FLOW equ 1
+LOG_CALC equ 3
+LOG_SEND equ 
+
+include '../../../macros.inc'
+include '../../../debug-fdo.inc'
+
+start:
+        DEBUGFG 1, LOG_FLOW, '1 flow\n'
+        DEBUGFG 2, LOG_FLOW, '2 flow\n'
+        DEBUGFG 3, LOG_FLOW, '3 flow\n'
+
+        DEBUGFG 1, LOG_CALC, '1 calc\n'
+        DEBUGFG 2, LOG_CALC, '2 calc\n'
+        DEBUGFG 3, LOG_CALC, '3 calc\n'
+
+        DEBUGFG 1, LOG_SEND, '1 send\n'
+        DEBUGFG 2, LOG_SEND, '2 send\n'
+        DEBUGFG 3, LOG_SEND, '3 send\n'
+
+        DEBUGF 1, '1 blah\n'
+        DEBUGF 2, '2 blah\n'
+        DEBUGF 3, '3 blah\n'
+
+        mov     eax, -1
+        int     0x40
+
+
+include_debug_strings 
+
+i_end:
+rb 0x100        ;stack
+e_end: