diff --git a/advlabdb/adminModelViews.py b/advlabdb/adminModelViews.py
index 7a1a2ca..cc959e7 100644
--- a/advlabdb/adminModelViews.py
+++ b/advlabdb/adminModelViews.py
@@ -278,6 +278,7 @@ class StudentView(SecureAdminModelView):
     can_view_details = True
 
     column_list = ["student_number", "first_name", "last_name", "uni_email", "contact_email", "part_students"]
+    column_descriptions = {"contact_email": "The preferred contact email address if entered by the student"}
     column_details_list = column_list + ["bachelor_thesis", "bachelor_thesis_work_group", "note"]
 
     column_sortable_list = ["student_number", "first_name", "last_name"]
@@ -381,7 +382,10 @@ class GroupView(SecureAdminModelView):
 
         class CustomForm(Form):
             part_students = QuerySelectMultipleField(
-                "Part Students", query_factory=query_factory, validators=[DataRequired()]
+                "Part Students",
+                query_factory=query_factory,
+                validators=[DataRequired()],
+                description="The part students have to be in the same program!",
             )
 
         return CustomForm
@@ -417,6 +421,7 @@ class ExperimentView(SecureAdminModelView):
 
     column_filters = ["active"]
     column_list = ["number", "program", "title", "active"]
+    column_descriptions = {"active": "Active experiments are present in new semesters"}
     column_details_list = column_list + [
         "description",
         "wiki_link",
@@ -429,17 +434,29 @@ class ExperimentView(SecureAdminModelView):
         "final_weighting",
         "semester_experiments",
     ]
+
+    form_columns = column_details_list.copy()
+    form_columns.remove("semester_experiments")
+
     column_editable_list = ["active"]
 
-    form_columns = column_details_list
-
-    form_args = {"wiki_link": {"validators": [URL()]}}
+    form_args = {
+        "wiki_link": {"validators": [URL()]},
+        "oral_weighting": {
+            "default": 0.5,
+            "description": "Oral and protocol weighting have to add to 1! Both are rounded to 2 decimal digits.",
+        },
+        "protocol_weighting": {"default": 0.5},
+    }
     form_extra_fields = {
         "program": QuerySelectField(
             "Program", query_factory=programQueryFactory, validators=[DataRequired()], allow_blank=True, blank_text="-"
         )
     }
 
+    def on_model_change(self, form, model, is_created):
+        model.checkWeightings(roundWeightings=True)
+
 
 def assistantQueryFactory():
     return Assistant.query.filter(Assistant.user.has(User.active == True))
@@ -533,7 +550,11 @@ class GroupExperimentView(SecureAdminModelView):
             blank_text="-",
         )
 
-        appointment1_date = DateField("Appointment-1 Date", validators=[Optional()])
+        appointment1_date = DateField(
+            "Appointment-1 Date",
+            validators=[Optional()],
+            description="Set if you already want to add an appointment. Otherwise, leave it blank and you can do it later under the Appointment tab.",
+        )
         appointment1_special = BooleanField("Appointment-1 Special", default=False)
         appointment1_assistant = QuerySelectField(
             "Appointment-1 Assistant",
@@ -542,7 +563,9 @@ class GroupExperimentView(SecureAdminModelView):
             blank_text=assistantBlankText,
         )
 
-        appointment2_date = DateField("Appointment-2 Date", validators=[Optional()])
+        appointment2_date = DateField(
+            "Appointment-2 Date", validators=[Optional()], description="Add a second appointment (see above)."
+        )
         appointment2_special = BooleanField("Appointment-2 Special", default=False)
         appointment2_assistant = QuerySelectField(
             "Appointment-2 Assistant",
@@ -681,6 +704,13 @@ class ExperimentMarkView(SecureAdminModelView):
 
     form = CreateForm
 
+    column_descriptions = {
+        "oral_mark": "Between 0 and 15",
+        "protocol_mark": "Between 0 and 15",
+        "assistant": "The assistant who assigned the mark",
+        "edited_by_admin": "If the mark was edited by an admin",
+    }
+
     column_editable_list = ["oral_mark", "protocol_mark"]
     form_args = {
         "oral_mark": {"validators": [NumberRange(0, 15)]},