diff --git a/browser/form.py b/browser/form.py
index 1e946ea..726ef60 100644
--- a/browser/form.py
+++ b/browser/form.py
@@ -525,6 +525,7 @@ class EditObject(FormController, I18NView):
         instance = self.instance
         formState = instance.applyTemplate(data=form, fieldHandlers=self.fieldHandlers)
         self.selected = []
+        self.predicates = []
         self.old = []
         stateKeys = []
         for k in form.keys():
@@ -578,6 +579,8 @@ class EditObject(FormController, I18NView):
                 self.old.append(v)
             elif fieldName == 'selected' and v not in self.selected:
                 self.selected.append(v)
+            elif fieldName == 'predicates' and v not in self.predicates:
+                self.predicates.append(v)
 
     def collectAutoConcepts(self):
         pass
@@ -589,11 +592,14 @@ class EditObject(FormController, I18NView):
                 concept = util.getObjectForUid(c)
                 predicate = util.getObjectForUid(p)
                 self.deassignConcept(obj, concept, [predicate])
-        for v in self.selected:
+        for idx, v in enumerate(self.selected):
             if v != 'none' and v not in self.old:
                 c, p = v.split(':')
                 concept = util.getObjectForUid(c)
-                predicate = util.getObjectForUid(p)
+                if len(self.predicates) > idx:  # predefined types + predicates
+                    predicate = self.view.conceptManager[self.predicates[idx]]
+                else:
+                    predicate = util.getObjectForUid(p)
                 exists = self.getConceptRelations(obj, [p], concept)
                 if not exists:
                     self.assignConcept(obj, concept, predicate)
diff --git a/browser/form_macros.pt b/browser/form_macros.pt
index 8b596ca..e15de5b 100644
--- a/browser/form_macros.pt
+++ b/browser/form_macros.pt
@@ -133,7 +133,8 @@
         <td><span i18n:translate="">Type</span>: </td>
         <td><b i18n:translate="" tal:content="type/title" /></td>
         <td><span i18n:translate="">Concept</span>: </td>
-        <td colspan="2">
+        <td colspan="2"
+            tal:define="predicates type/predicates|nothing">
           <select name="form.assignments.selected:list">
             <tal:concepts repeat="concept python: view.conceptsForType(type['token'])">
               <option tal:attributes="value concept/token"
@@ -141,6 +142,18 @@
                       tal:content="concept/title">Zope Corp</option>
             </tal:concepts>
           </select>
+          <tal:predicates condition="predicates">
+            <span i18n:translate="">Predicate:</span>
+            <select name="form.assignments.predicates:list">
+              <option tal:repeat="pred predicates"
+                      tal:attributes="value pred"
+                      i18n:translate=""
+                      tal:content="python:view.conceptManager[pred].title" />
+            </select>
+          </tal:predicates>
+          <input type="hidden"
+                 name="form.assignments.predicates:list" value="standard"
+                 tal:condition="not:predicates" />
         </td>
       </tr>
       <tr tal:repeat="relation view/assignments">
@@ -152,6 +165,9 @@
                  tal:attributes="value relation/uidToken;" />
           <span tal:content="relation/adapted/getLongTitle">Something</span>
           (<span i18n:translate="" tal:content="relation/typeTitle">Topic</span>)
+          <tal:predicate condition="python:relation.predicate != view.defaultPredicate">
+            [<i i18n:translate="" tal:content="relation/predicate/title" />]
+          </tal:predicate>
         </td>
       </tr>
     </tbody>
diff --git a/organize/browser/configure.zcml b/organize/browser/configure.zcml
index 35fe923..4970017 100644
--- a/organize/browser/configure.zcml
+++ b/organize/browser/configure.zcml
@@ -75,6 +75,14 @@
       class="loops.organize.browser.event.CalendarInfo"
       permission="zope.View" />
 
+  <!-- specialized forms -->
+
+  <browser:page
+      name="edit_person.html"
+      for="loops.interfaces.INode"
+      class="loops.organize.browser.party.EditPersonForm"
+      permission="zope.View" />
+
   <!-- authentication -->
 
   <browser:addform
@@ -83,8 +91,7 @@
       content_factory="loops.organize.auth.PersonBasedAuthenticator"
       keyword_arguments="prefix"
       name="AddPersonBasedAuthenticator.html"
-      permission="zope.ManageServices"
-      />
+      permission="zope.ManageServices" />
 
   <browser:addMenuItem
       title="Person-based Authenticator"
diff --git a/organize/browser/party.py b/organize/browser/party.py
index 814fd65..0a73282 100644
--- a/organize/browser/party.py
+++ b/organize/browser/party.py
@@ -34,6 +34,7 @@ from cybertools.ajax import innerHtml
 from cybertools.browser.action import actions
 from cybertools.browser.form import FormController
 from loops.browser.action import DialogAction
+from loops.browser.form import EditConceptForm
 from loops.browser.node import NodeView
 from loops.common import adapted
 from loops.organize.party import getPersonForUser
@@ -56,7 +57,7 @@ actions.register('createPerson', 'portlet', DialogAction,
 actions.register('editPerson', 'portlet', DialogAction,
         title=_(u'Edit Person...'),
         description=_(u'Modify person.'),
-        viewName='edit_concept.html',
+        viewName='edit_person.html',
         dialogName='editPerson',
         prerequisites=['registerDojoDateWidget'],
 )
@@ -106,6 +107,18 @@ actions.register('send_email', 'object', DialogAction,
 )
 
 
+class EditPersonForm(EditConceptForm):
+
+    @Lazy
+    def presetTypesForAssignment(self):
+        types = list(self.typeManager.listTypes(include=('workspace',)))
+        #assigned = [r.context for r in self.assignments]
+        #types = [t for t in types if t.typeProvider not in assigned]
+        return [dict(title=t.title, token=t.tokenForSearch,
+                     predicates=['standard', 'ismember', 'ismaster']) for t in types]
+
+
+
 class SendEmailForm(NodeView):
 
     __call__ = innerHtml