diff --git a/app/scodoc/sco_users.py b/app/scodoc/sco_users.py
index c4737e4b7..8ae260827 100644
--- a/app/scodoc/sco_users.py
+++ b/app/scodoc/sco_users.py
@@ -29,6 +29,7 @@
 """
 
 # Anciennement ZScoUsers.py, fonctions de gestion des données réécrites avec flask/SQLAlchemy
+import datetime
 import re
 
 from flask import url_for, g, render_template, request
@@ -47,7 +48,11 @@ from app.scodoc.sco_exceptions import ScoValueError
 
 
 def index_html(
-    all_depts=False, having_role_name: str = "", with_inactives=False, fmt="html"
+    all_depts=False,
+    having_role_name: str = "",
+    with_inactives=False,
+    detail_roles=False,
+    fmt="html",
 ):
     "gestion utilisateurs..."
     all_depts = int(all_depts)
@@ -73,14 +78,6 @@ def index_html(
                 """   Pour importer des utilisateurs en masse (via fichier xlsx)
                 contactez votre administrateur scodoc."""
             )
-    if all_depts:
-        checked = "checked"
-    else:
-        checked = ""
-    if with_inactives:
-        olds_checked = "checked"
-    else:
-        olds_checked = ""
 
     menu_roles = "\n".join(
         f"""<option value="{r.name}" {
@@ -92,9 +89,11 @@ def index_html(
         f"""
     <form name="f" action="{request.base_url}" method="get">
     <input type="checkbox" name="all_depts" value="1" onchange="document.f.submit();"
-    {checked}>Tous les départements</input>
+    {"checked" if all_depts else ""}>Tous les départements</input>
     <input type="checkbox" name="with_inactives" value="1" onchange="document.f.submit();"
-    {olds_checked}>Avec anciens utilisateurs</input>
+    {"checked" if with_inactives else ""}>Avec anciens utilisateurs</input>
+    <input type="checkbox" name="detail_roles" value="1" onchange="document.f.submit();"
+    {"checked" if detail_roles else ""}>Sépare les rôles</input>
 
     <label for="having_role_name" style="margin-left:16px;">Filtrer par rôle:</label>
     <select id="having_role_name" name="having_role_name" onchange="document.f.submit();">
@@ -119,6 +118,7 @@ def index_html(
         having_role=having_role,
         with_inactives=with_inactives,
         with_links=current_user.has_permission(Permission.UsersAdmin, g.scodoc_dept),
+        detail_roles=detail_roles,
     )
     if fmt != "html":
         return content
@@ -137,10 +137,12 @@ def list_users(
     having_role: Role = None,
     with_inactives=False,
     with_links=True,
+    detail_roles=False,
 ):
     """List users, returns a table in the specified format.
     Si with_inactives, inclut les anciens utilisateurs (status "old").
     Si having_role, ne liste que les utilisateurs ayant ce rôle.
+    Si detail_roles, affiche les rôles dans des colonnes séparées.
     """
     from app.scodoc.sco_permissions_check import can_handle_passwd
 
@@ -179,9 +181,24 @@ def list_users(
             d["non_migre"] = (
                 "NON MIGRÉ" if u.passwd_temp or u.password_scodoc7 else "ok"
             )
+            if not current_user.is_administrator():
+                # si non super-admin, ne donne pas la date exacte de derniere connexion
+                d["last_seen"] = _approximate_date(u.last_seen)
         else:
             d["date_modif_passwd"] = "(non visible)"
             d["non_migre"] = ""
+        if detail_roles:
+            d["roles_set"] = {
+                f"{r.role.name or ''}_{r.dept or ''}" for r in u.user_roles
+            }
+
+    if detail_roles:
+        roles_set = set()
+        for d in rows:
+            roles_set.update(d["roles_set"])
+        roles_columns = sorted(roles_set)
+        for d in rows:
+            d.update({r: "X" if r in d["roles_set"] else "" for r in roles_columns})
 
     columns_ids = [
         "user_name",
@@ -206,31 +223,39 @@ def list_users(
                 "cas_allow_scodoc_login",
                 "cas_last_login",
             ]
-    columns_ids += ["email_institutionnel", "edt_id"]
+    elif can_modify:
+        # Si l'utilisateur est admin local (can_modify) mais pas super admin,
+        # indique une date de dernière connexion approchée (mois, année)
+        columns_ids.append("last_seen")
 
+    columns_ids += ["email_institutionnel", "edt_id"]
     title = "Utilisateurs définis dans ScoDoc"
+    titles = {
+        "user_name": "Login",
+        "nom_fmt": "Nom",
+        "prenom_fmt": "Prénom",
+        "email": "Mail",
+        "email_institutionnel": "Mail institutionnel (opt.)",
+        "dept": "Dept.",
+        "roles_string": "Rôles",
+        "date_expiration": "Expiration",
+        "date_modif_passwd": "Modif. mot de passe",
+        "last_seen": "Dernière cnx.",
+        "non_migre": "Non migré (!)",
+        "status_txt": "Etat",
+        "cas_id": "Id CAS",
+        "cas_allow_login": "CAS autorisé",
+        "cas_allow_scodoc_login": "Cnx sans CAS",
+        "cas_last_login": "Dernier login CAS",
+        "edt_id": "Identifiant emploi du temps",
+    }
+    if detail_roles:
+        columns_ids += roles_columns
+        titles.update({r: r for r in roles_columns})
     tab = GenTable(
         rows=rows,
         columns_ids=columns_ids,
-        titles={
-            "user_name": "Login",
-            "nom_fmt": "Nom",
-            "prenom_fmt": "Prénom",
-            "email": "Mail",
-            "email_institutionnel": "Mail institutionnel (opt.)",
-            "dept": "Dept.",
-            "roles_string": "Rôles",
-            "date_expiration": "Expiration",
-            "date_modif_passwd": "Modif. mot de passe",
-            "last_seen": "Dernière cnx.",
-            "non_migre": "Non migré (!)",
-            "status_txt": "Etat",
-            "cas_id": "Id CAS",
-            "cas_allow_login": "CAS autorisé",
-            "cas_allow_scodoc_login": "Cnx sans CAS",
-            "cas_last_login": "Dernier login CAS",
-            "edt_id": "Identifiant emploi du temps",
-        },
+        titles=titles,
         caption=title,
         page_title="title",
         html_title=f"""<h2>{len(rows)} utilisateurs {comm}</h2>
@@ -247,6 +272,28 @@ def list_users(
     return tab.make_page(fmt=fmt, with_html_headers=False)
 
 
+def _approximate_date(date: datetime.datetime) -> str:
+    if not date:
+        return "jamais vu"
+
+    now = datetime.datetime.now()
+
+    # Calculate the difference in years and months
+    delta_years = now.year - date.year
+    delta_months = now.month - date.month
+
+    if delta_years == 0 and delta_months == 0:
+        return "ce mois"
+    if delta_years == 0 or (delta_years == 1 and delta_months < 0):
+        return "cette année"
+    if delta_years == 1:
+        return "l'an dernier"
+    if delta_years == 2:
+        return "il y a 2 ans"
+
+    return "pas vu depuis très lontemps"
+
+
 def get_users_count(dept=None) -> int:
     """Nombre de comptes utilisateurs, tout état confondu, dans ce dept
     (ou dans tous si None)"""
diff --git a/app/views/users.py b/app/views/users.py
index a28252656..dbd15b05c 100644
--- a/app/views/users.py
+++ b/app/views/users.py
@@ -135,13 +135,16 @@ class Mode(IntEnum):
 @bp.route("/index_html", alias=True)
 @scodoc
 @permission_required(Permission.UsersView)
-@scodoc7func
-def index_html(
-    all_depts=False, having_role_name: str = "", with_inactives=False, fmt="html"
-):
+def index_html():
     "Page accueil utilisateur: tableau avec liste des comptes"
+    all_depts = scu.to_bool(request.args.get("all_depts", False))
+    detail_roles = scu.to_bool(request.args.get("detail_roles", False))
+    fmt = request.args.get("fmt", "html")
+    having_role_name = request.args.get("having_role_name", "")
+    with_inactives = scu.to_bool(request.args.get("with_inactives", False))
     return sco_users.index_html(
         all_depts=all_depts,
+        detail_roles=detail_roles,
         having_role_name=having_role_name,
         with_inactives=with_inactives,
         fmt=fmt,