diff --git a/__init__.py b/__init__.py
index 983d73e..cd847cc 100644
--- a/__init__.py
+++ b/__init__.py
@@ -39,12 +39,12 @@ class SewebManager(ServiceManager):
     USAGE = """
     Usage:
 
-      seaweb list [<instance>]
+      seaweb list [instance]
       seaweb start <instance>
       seaweb restart <instance>
       seaweb stop <instance>
 
-      <instance> is one of %s
+      %s
     """
 
 
@@ -57,37 +57,45 @@ def run(group, arglist):
         defaults = parser['DEFAULT']
         managers = {cls.group: cls() for cls in all if cls.group + '_command' in defaults}
         serv = managers[group]
-        args = dict(action='gui', ins=serv.main_ins)
-        ACTION = 1
-        INS = 2
-        SERVICE = 2 if serv.main_ins else 3
+        # args = dict(action='gui', ins=serv.main_ins)
+        args = {}
+        guessed_args = []
         extra = []
-        pos = 0
-        unorder = False
-        for arg in arglist:
-            if hasattr(serv, 'do_' + arg):
-                args['action'] = arg
-                if pos >= ACTION:
-                    unorder = True
-                pos = ACTION
-            elif arg in serv.services:
-                args['service'] = arg
-                if pos >= SERVICE:
-                    unorder = True
-                pos = SERVICE
-            elif arg in serv.info or arg == 'all' or serv.wildcard(arg):
-                args['ins'] = arg
-                if pos >= INS:
-                    unorder = True
-                pos = INS
+
+        arg_is = {
+           'action': lambda arg: hasattr(serv, 'do_' + arg),
+           'ins': lambda arg: arg in serv.info or arg == 'all' or serv.wildcard(arg),
+           'service': lambda arg: arg in serv.services,
+        }
+
+        for kind in 'action', 'ins', 'service':
+            if arglist and arg_is[kind](arglist[0]):  # arg is of expected kind
+                args[kind] = arglist.pop(0)
+                continue
+            if guessed_args and guessed_args[-1][0] == kind:  # last arg was skipped
+                args[kind] = guessed_args.pop()[1]
+                continue
+            if not arglist:
+                break
+            arg = arglist.pop(0)
+            for kind, is_kind in arg_is.items():
+                if is_kind(arg):
+                    guessed_args.append((kind, arg))
+                    break
             else:
                 extra.append(arg)
-        if unorder:
+
+        args.update(guessed_args)
+        args.setdefault('action', 'gui')
+        if serv.main_ins:
+            args.setdefault('ins', serv.main_ins)
+        if guessed_args:
+            args.setdefault('action', 'gui')
             print('do you mean:\n   %s %s %s %s %s' %
                   (group, args.get('action', ''), args.get('ins', ''), args.get('service', ''), ' '.join(extra)))
-        else:
+        else:            
             try:
-                serv.action(args['action'], *serv.treat_args(args, extra))
+                serv.action(args['action'], *serv.treat_args(args, extra + arglist))
             except AttributeError:
                 raise
     except UsageError as e:
diff --git a/base.py b/base.py
index 62a182e..ead47e4 100644
--- a/base.py
+++ b/base.py
@@ -138,7 +138,7 @@ class ServiceManager:
         for ins in parser.sections():
             section = dict(parser[ins])
             if ins == 'MAIN':
-                ins = self.main_ins = basename(expanduser('~'))
+                ins = self.main_ins = os.environ.get('Instrument') or basename(expanduser('~'))
             if 'REMOTE_HOST' in section:
                 self.remote_hosts[ins] = section['REMOTE_HOST']
             command = section.get('%s_command' % self.group)
@@ -470,7 +470,8 @@ class ServiceManager:
 
     def do_help(self, *args):
         if self.main_ins:
-            usage = self.USAGE.replace(' <instance>', '').replace(' [<instance>]', '') % ''
+            usage = self.USAGE.replace('<instance>', '[instance]') % (
+               '[instance] is empty or one of %s' % ', '.join(self.info))
         else:
             usage = self.USAGE % ('<instance> is one of %s' % ', '.join(self.info))
         print(usage)
@@ -479,7 +480,7 @@ class ServiceManager:
         if unknown:
             raise UsageError('unknown argument: %s' % (' '.join(unknown)))
         if extra:
-            return [argdict.get('ins'), argdict.get('service')] + extra
+            return [argdict.get('ins'), argdict.get('service')] + list(extra)
         args = [argdict.get('ins'), argdict.get('service')]
         while args and not args[-1]:
             args.pop()
diff --git a/frappyman.py b/frappyman.py
index 7fdb949..9d03874 100644
--- a/frappyman.py
+++ b/frappyman.py
@@ -34,7 +34,7 @@ class FrappyManager(ServiceManager):
     USAGE = """
     Usage:
 
-      frappy list [<instance>]                                 *
+      frappy list [instance]                                   *
       frappy start <instance> <service> <cfgfiles>
       frappy restart <instance> [<service>] [<cfgfiles>]       *
       frappy stop <instance> [<service>]                       *
diff --git a/nicosman.py b/nicosman.py
index 00f1ef9..f984a78 100644
--- a/nicosman.py
+++ b/nicosman.py
@@ -63,7 +63,7 @@ class NicosManager(ServiceManager):
       nicos create <instance> <nr>                 *
       nicos link <instance>              (create links to nicos data and scripts)
 
-      <service> is one of main, stick, addons
+      <service> is one of cache, deamon, poller
       %s
       * wildcards allowed, using '.' to replace 0 or more arbitrary characters in <instance>
 
diff --git a/seaman.py b/seaman.py
index 42326f5..612cb14 100644
--- a/seaman.py
+++ b/seaman.py
@@ -58,12 +58,12 @@ class SeaManager(ServiceManager):
       sea gui <instance>
       sea <instance>                          # the same as sea gui <instance>
       sea cli <instance>                      # the same as old seacmd
-      sea start <instance> [<service>]     *  # the same as old 'monit start sea'
-      sea restart <instance> [<service>]   *
-      sea stop <instance> [<service>]      *
-      sea list [<instance>]                *
+      sea start <instance> [service]       *  # the same as old 'monit start sea'
+      sea restart <instance> [service]     *
+      sea stop <instance> [service]        *
+      sea list [instance]                  *
 
-      <service> is one of sea, graph
+      [service] is empty or one of sea, graph
       %s
       * wildcards allowed, using '.' to replace 0 or more arbitrary characters in <instance>
     """
@@ -132,7 +132,8 @@ class SeaManager(ServiceManager):
                     if match:
                         _, key, dev, addon, _ = match.groups()
                         if addon:
-                            result.append(addon)
+                            if addon != result[1]:
+                                result.append(addon)
                         elif key == 'name':
                             result[0] = dev
                         else: