You received a response asking you to post your model so that other users can review it and offer suggestions based on what is observed. Please note that it is a good policy to review your posts several times after submitting just to ensure that you see any advice in a timely manner. (This is particularly significant when you are facing a time sensitive deadline!) Responsive replies will often be submitted by one of the Sages or other active forum members when an image or model accompanies the post.
You can upload images or a model by clicking the UP pointing arrow icon (7th icon from the left at the top of the Reply box). The max file size for uploaded files is 3 mb per post. If your file is larger than that, you should use a file sharing service such as Dropbox or Google Drive, just to name a few…there are several others that can do the same thing. Be sure to include the url address for the upload link in your post.
If you want to send a PM (Private Message) to a forum member, click on their avatar and then click the blue Message box that appears at the top right of the Summary panel.
Welcome to the SketchUp Community and feel free to ask questions and to post comments.