Improved the flexibility of the event files upload component.

src/routes/events_pres_mgmt/session/[slug]/+page.svelte

@@ -187,7 +187,20 @@ onMount(() => {
             class_li="border border-gray-300 rounded-md p-2 bg-gray-100 hover:bg-gray-200"
             link_to_type="event_session"
             link_to_id={$lq__event_session_obj.event_session_id}
-            />
+            >
+            <span slot="label">
+                <div>
+                    <span class="fas fa-upload"></span>
+                    <strong class="bg-yellow-100 p-1">Upload session (breakout) specific files only!</strong>
+                </div>
+                <span class="text-sm text-gray-600 dark:text-gray-400 italic">
+                    <strong>Session (breakout) files only</strong><br>
+                    Recommended: PowerPoint (pptx) or Keynote (key)<br>
+                    Media: Audio and videos files should be directly embedded in PowerPoint (PPTX) files<br>
+                    Supplemental files: mp4, PDF, Word Doc, Excel, txt, etc
+                </span>
+            </span>
+        </Comp_event_files_upload>
 
         <div class="overflow-x-auto w-max max-w-full">
         <Element_manage_event_file_li_wrap