diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index a75c1b161451012d1fac1b79472112e7a2a80226..e897054e74a2bba7df9b25793df8915fea61f8d6 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -448,6 +448,10 @@ def gitlab_ui_form_for(record, *args, &block)
     form_for(record, *(args << options.merge({ builder: ::Gitlab::FormBuilders::GitlabUiFormBuilder })), &block)
   end
 
+  def gitlab_ui_form_with(**args, &block)
+    form_with(**args.merge({ builder: ::Gitlab::FormBuilders::GitlabUiFormBuilder }), &block)
+  end
+
   private
 
   def appearance
diff --git a/app/views/groups/_import_group_from_another_instance_panel.html.haml b/app/views/groups/_import_group_from_another_instance_panel.html.haml
index a9234753aa2370bda6b41dacf0a7fcf186fc9391..d48bf0173a4ced43a03a1ea7e9775340c084b085 100644
--- a/app/views/groups/_import_group_from_another_instance_panel.html.haml
+++ b/app/views/groups/_import_group_from_another_instance_panel.html.haml
@@ -1,5 +1,5 @@
-= form_with url: configure_import_bulk_imports_path(namespace_id: params[:parent_id]), class: 'group-form gl-show-field-errors' do |f|
-  .gl-border-l-solid.gl-border-r-solid.gl-border-gray-100.gl-border-1.gl-p-5
+= gitlab_ui_form_with url: configure_import_bulk_imports_path(namespace_id: params[:parent_id]), class: 'gl-show-field-errors' do |f|
+  .gl-border-l-solid.gl-border-r-solid.gl-border-t-solid.gl-border-gray-100.gl-border-1.gl-p-5.gl-mt-4
     .gl-display-flex.gl-align-items-center
       %h4.gl-display-flex
         = s_('GroupsNew|Import groups from another instance of GitLab')
@@ -32,4 +32,4 @@
         id: 'import_gitlab_token',
         data: { qa_selector: 'import_gitlab_token' }
   .gl-border-gray-100.gl-border-solid.gl-border-1.gl-bg-gray-10.gl-p-5
-    = f.submit s_('GroupsNew|Connect instance'), class: 'btn gl-button btn-confirm', data: { qa_selector: 'connect_instance_button' }
+    = f.submit s_('GroupsNew|Connect instance'), pajamas_button: true, data: { qa_selector: 'connect_instance_button' }
diff --git a/spec/helpers/application_helper_spec.rb b/spec/helpers/application_helper_spec.rb
index 264431b1bb55fe5829a6cff0bcbbf9cffc51ceb8..a4b2c963c74ec14cfb59b9143d6d4d971fb86649 100644
--- a/spec/helpers/application_helper_spec.rb
+++ b/spec/helpers/application_helper_spec.rb
@@ -486,6 +486,25 @@ def stub_controller_method(method_name, value)
     end
   end
 
+  describe '#gitlab_ui_form_with' do
+    let_it_be(:user) { build(:user) }
+
+    before do
+      allow(helper).to receive(:users_path).and_return('/root')
+      allow(helper).to receive(:form_with).and_call_original
+    end
+
+    it 'adds custom form builder to options and calls `form_with`' do
+      options = { model: user, html: { class: 'foo-bar' } }
+      expected_options = options.merge({ builder: ::Gitlab::FormBuilders::GitlabUiFormBuilder })
+
+      expect do |b|
+        helper.gitlab_ui_form_with(**options, &b)
+      end.to yield_with_args(::Gitlab::FormBuilders::GitlabUiFormBuilder)
+      expect(helper).to have_received(:form_with).with(expected_options)
+    end
+  end
+
   describe '#page_class' do
     context 'when logged_out_marketing_header experiment is enabled' do
       let_it_be(:expected_class) { 'logged-out-marketing-header-candidate' }