diff --git a/kfet/static/kfet/css/kpsul.css b/kfet/static/kfet/css/kpsul.css
index c3e248b8..3a427c23 100644
--- a/kfet/static/kfet/css/kpsul.css
+++ b/kfet/static/kfet/css/kpsul.css
@@ -320,3 +320,15 @@ input[type=number]::-webkit-outer-spin-button {
     background-color:#C8102E;
     color:#FFF;
 }
+
+/* History */
+
+#history div.general.ui-selected, #history div.general.ui-selecting,
+#history div.ope.ui-selected, #history div.ope.ui-selecting {
+    background-color:#C8102E;
+    color:#FFF;
+}
+
+#history .canceled {
+    text-decoration:line-through;
+}
diff --git a/kfet/templates/kfet/kpsul.html b/kfet/templates/kfet/kpsul.html
index 37ba3e5b..9ecaf342 100644
--- a/kfet/templates/kfet/kpsul.html
+++ b/kfet/templates/kfet/kpsul.html
@@ -88,7 +88,7 @@
     </div>
   </div>
   <div class="col-sm-4">
-    <div id="history_data">
+    <div id="history">
     </div>
   </div>
 </div>
@@ -98,8 +98,6 @@
 </form>
 
 <!--
-<button type="button" id="perform_operations">Valider</button>
-
 <form id="cancel_form">
     Opé annul 1:<input type="text" name="operation"><br>
     Opé annul 2:<input type="text" name="operation">
@@ -330,8 +328,8 @@ $(document).ready(function() {
     var cancelButton = $('#cancel_operations');
     var cancelForm   = $('#cancel_form');
 
-    function cancelOperations() {
-        var data = cancelForm.serialize();
+    function cancelOperations(opes_array) {
+        var data = { 'operations' : opes_array }
         $.ajax({
             dataType: "json",
             url     : "{% url 'kfet.kpsul.cancel_operations' %}",
@@ -340,6 +338,7 @@ $(document).ready(function() {
         })
         .done(function(data) {
             console.log(data);
+            history_container.find('.ui-selected').removeClass('ui-selected');
         })
         .fail(function($xhr) {
             var data = $xhr.responseJSON;
@@ -542,7 +541,6 @@ $(document).ready(function() {
         return false;
     });
 
-
     // -----
     // Basket
     // -----
@@ -562,7 +560,7 @@ $(document).ready(function() {
     }
 
     function addPurchase(id, nb) {
-        var amount_euro = amountEuroPurchase(id, nb);
+        var amount_euro = amountEuroPurchase(id, nb).toFixed(2);
         var index = addPurchaseToFormset(article_data[1], nb, amount_euro);
         article_basket_html = $(item_basket_default_html);
         article_basket_html
@@ -805,7 +803,7 @@ $(document).ready(function() {
     // History
     // -----
 
-    var history_container = $('#history_data');
+    var history_container = $('#history');
     var history_operationgroup_html = '<div class="opegroup"><div class="general"></div></div>';
     var history_operation_html = '<div class="ope"></div>';
 
@@ -864,6 +862,37 @@ $(document).ready(function() {
         history_container.find('.opegroup').remove();
     }
 
+    // -----
+    // Cancel from history
+    // -----
+
+    history_container.selectable({
+        filter: 'div.opegroup div.general, div.ope',
+        selected: function(e, ui) {
+            $(ui.selected).each(function() {
+                if ($(this).hasClass('general'))
+                    $(this).siblings('.ope').addClass('ui-selected');
+            });
+        },
+        unselected: function(e, ui) {
+            $(ui.unselected).each(function() {
+                if ($(this).hasClass('general'))
+                    $(this).siblings('.ope').removeClass('ui-selected');
+            });
+        }
+    });
+
+    $(document).on('keypress', function (e) {
+        if (e.keyCode == 46) {
+            // DEL (Suppr)
+            var opes_to_cancel = [];
+            history_container.find('.ope.ui-selected').each(function () {
+                opes_to_cancel.push($(this).attr('data-ope'));
+            });
+            cancelOperations(opes_to_cancel);
+        }
+    });
+
     function cancelOpeGroup(opegroup) {
         var opegroup_html = history_container.find('[data-opegroup='+opegroup['id']+']');
         opegroup_html.find('.amount').text(opegroup['amount']);
diff --git a/kfet/views.py b/kfet/views.py
index 2d759a94..9075f1d2 100644
--- a/kfet/views.py
+++ b/kfet/views.py
@@ -590,6 +590,7 @@ def kpsul_perform_operations(request):
         'amount': operationgroup.amount,
         'checkout__name': operationgroup.checkout.name,
         'at': operationgroup.at,
+        'is_cof': operationgroup.is_cof,
         'valid_by__trigramme': ( operationgroup.valid_by and
             operationgroup.valid_by.trigramme or None),
         'on_acc__trigramme': operationgroup.on_acc.trigramme,
@@ -633,7 +634,7 @@ def kpsul_cancel_operations(request):
     # Checking if BAD REQUEST (opes_pk not int or not existing)
     try:
         # Set pour virer les doublons
-        opes_post = set(map(int, filter(None, request.POST.getlist('operation', []))))
+        opes_post = set(map(int, filter(None, request.POST.getlist('operations[]', []))))
     except ValueError:
         return JsonResponse(data, status=400)
     opes_all = (