diff --git a/lib/galaxy/visualization/data_providers/genome.py b/lib/galaxy/visualization/data_providers/genome.py
index fc5da2774f2..81b69f167a7 100644
--- a/lib/galaxy/visualization/data_providers/genome.py
+++ b/lib/galaxy/visualization/data_providers/genome.py
@@ -889,6 +889,9 @@ class BamDataProvider( GenomeDataProvider, FilterableMixin ):
         """
 
         # Fetch and return data.
+        chrom = str(chrom)
+        start = int(start)
+        end = int(end)
         try:
             data = data_file.fetch( start=start, end=end, reference=chrom )
         except ValueError:
diff --git a/templates/webapps/galaxy/workflow/display.mako b/templates/webapps/galaxy/workflow/display.mako
index 367b8118f9c..51f27176d4b 100644
--- a/templates/webapps/galaxy/workflow/display.mako
+++ b/templates/webapps/galaxy/workflow/display.mako
@@ -30,6 +30,15 @@
       <% new_prefix = prefix + input.name + "|" %>
       ${row_for_param( input.test_param, group_values[ input.test_param.name ], other_values, prefix, step )}
       ${do_inputs( input.cases[ current_case ].inputs, group_values, new_prefix, step, other_values )}
+    %elif input.type == "section":
+      <% new_prefix = prefix + input.name + "|" %>
+      <% group_values = values[input.name] %>
+      <div class="form-title-row"><b>${input.title}:</b></div>
+      <div class="repeat-group">
+        <div class="repeat-group-item">
+          ${do_inputs( input.inputs, group_values, new_prefix, step, other_values )}
+        </div>
+      </div>
     %else:
       ${row_for_param( input, values[ input.name ], other_values, prefix, step )}
     %endif