diff --git a/lib/AmuseWikiFarm/Controller/BookBuilder.pm b/lib/AmuseWikiFarm/Controller/BookBuilder.pm
index 9ab38405..0fc0102a 100644
--- a/lib/AmuseWikiFarm/Controller/BookBuilder.pm
+++ b/lib/AmuseWikiFarm/Controller/BookBuilder.pm
@@ -29,7 +29,7 @@ Deny access to not-human
 
 =cut
 
-sub start_new_session :Chained('/site_human_required') :PathPart('bookbuild-new-session') :Args(0) {
+sub start_new_session :Chained('/site_human_required') :PathPart('bookbuilder-new-session') :Args(0) {
     my ($self, $c) = @_;
     delete $c->session->{bookbuilder};
     delete $c->session->{bookbuilder_token};
@@ -37,6 +37,30 @@ sub start_new_session :Chained('/site_human_required') :PathPart('bookbuild-new-
     $c->response->redirect($c->uri_for_action('/bookbuilder/index'));
 }
 
+sub load :Chained('/site_human_required') :PathPart('bookbuilder-load-token') :Args(0) {
+    my ( $self, $c ) = @_;
+    my $ok;
+    if (my $token = $c->request->body_parameters->{token}) {
+        if ($c->request->body_parameters->{replace}) {
+            # log_info { "Starting new BB session" };
+            delete $c->session->{bookbuilder};
+            delete $c->session->{bookbuilder_token};
+        }
+        my $bb = $c->model('BookBuilder');
+        if (my $newbb = $bb->load_from_token("$token")) {
+            $c->stash(bb => $newbb);
+            $self->save_session($c);
+            $ok = 1;
+        }
+    }
+    unless ($ok) {
+        $c->flash->{error_msg} = $c->loc('Unable to load the bookbuilder session');
+    }
+    $c->response->redirect($c->uri_for_action('/bookbuilder/index'));
+}
+
+
+
 sub root :Chained('/site_human_required') :PathPart('bookbuilder') :CaptureArgs(0) {
     my ( $self, $c ) = @_;
 
@@ -379,22 +403,6 @@ sub schemas :Chained('root') :PathPart('schemas') :Args(0) {
     $c->stash(page_title => $c->loc('Imposition schemas'));
 }
 
-sub load :Chained('root') :Args(0) {
-    my ( $self, $c ) = @_;
-    my $ok;
-    if (my $token = $c->request->body_parameters->{token}) {
-        if (my $bb = $c->stash->{bb}->load_from_token($token . '')) {
-            $c->stash(bb => $bb);
-            $self->save_session($c);
-            $ok = 1;
-        }
-    }
-    unless ($ok) {
-        $c->flash->{error_msg} = $c->loc('Unable to load the bookbuilder session');
-    }
-    $c->response->redirect($c->uri_for_action('/bookbuilder/index'));
-}
-
 # no tests here, seems pretty straightforward
 sub from_custom_format :Chained('root') :PathPart('from-custom-format') :Args(1) {
     my ($self, $c, $cf_code) = @_;
diff --git a/root/src/bookbuilder/index.tt b/root/src/bookbuilder/index.tt
index e994a41c..04c83196 100644
--- a/root/src/bookbuilder/index.tt
+++ b/root/src/bookbuilder/index.tt
@@ -436,6 +436,11 @@
                  placeholder="[% loc('Load another session by token') %]" />
           <span class="input-group-btn">
             <button class="btn btn-default" type="submit" name="load" value="1">
+              [% loc('Load adding texts') %]
+              <span class="fa fa-folder-open-o"></span>
+            </button>
+            <button class="btn btn-default" type="submit" name="replace" value="1">
+              [% loc('Load replacing texts') %]
               <span class="fa fa-folder-open-o"></span>
             </button>
           </span>
diff --git a/t/authentication.t b/t/authentication.t
index 83312d73..9f17254d 100644
--- a/t/authentication.t
+++ b/t/authentication.t
@@ -13,7 +13,7 @@ use Text::Amuse::Compile::Utils qw/write_file/;
 use AmuseWiki::Tests qw/create_site/;
 use AmuseWikiFarm::Schema;
 use Test::WWW::Mechanize::Catalyst;
-use Test::More tests => 2463; # test spamming
+use Test::More tests => 2483; # test spamming
 
 my $schema = AmuseWikiFarm::Schema->connect('amuse');
 my $site = create_site($schema, '0authen0');
@@ -118,7 +118,8 @@ my @human_only = (
                   '/bookbuilder/edit',
                   '/bookbuilder/fonts',
                   '/bookbuilder',
-                  '/bookbuilder/load',
+                  '/bookbuilder-load-token',
+                  '/bookbuilder-new-session',
                   '/bookbuilder/profile/1',
                   '/bookbuilder/schemas',
                   # job number