app/views/bulk_submissions/_submission_templates.html.erb
<h4 class="card-title">All submission templates</h4>
<div id="accordion" role="tablist" aria-multiselectable="true">
<% @submission_template_groups.each do |group,templates| %>
<div class="card">
<div class="card-header" role="tab" id="heading<%= group.gsub(' ','_').camelize %>" data-toggle="collapse" data-parent="#accordion" href="#collapse<%= group.gsub(' ','_').camelize %>">
<h5 class="dropdown-toggle"><%= group %></h5>
</div>
<div id='collapse<%= group.gsub(' ','_').camelize %>' class="card-collapse collapse" role="tabpanel" aria-labelledby="heading<%= group.gsub(' ','_').camelize %>">
<ul class='list-group list-group-flush'><% templates.each do |template| %>
<li class='list-group-item'><%= template.name %></li>
<% end %></ul>
</div>
</div>
<% end %>
</div>