app/views/alchemy/admin/elements/new.html.erb
<%- if @clipboard_items.blank? -%>
<%= render 'form' %>
<%- else -%>
<sl-tab-group id="overlay_tabs">
<sl-tab slot="nav" panel="create_element_tab"><%= Alchemy.t('New') %></sl-tab>
<sl-tab slot="nav" panel="paste_element_tab"><%= Alchemy.t('Paste from clipboard') %></sl-tab>
<sl-tab-panel name="create_element_tab">
<%= render 'form' %>
</sl-tab-panel>
<sl-tab-panel name="paste_element_tab">
<%= alchemy_form_for([:admin, @element]) do |f| %>
<%= f.hidden_field :page_version_id %>
<%= f.hidden_field :parent_element_id, value: @parent_element.try(:id) %>
<div class="input select">
<label for="paste_from_clipboard" class="control-label"><%= Alchemy.t("Element") %></label>
<%= select_tag 'paste_from_clipboard',
clipboard_select_tag_options(@clipboard_items),
is: 'alchemy-select' %>
</div>
<%= f.submit Alchemy.t(:paste) %>
<% end %>
</sl-tab-panel>
</sl-tab-group>
<%- end -%>