Mwebvendor Graham Yeah so very easy, thanks graham

 bemethavinci Graham Good day sir graham...its been a while....to my contribution, it will be nice if you add a DEMO link for your viewers to see how it works...and also to newbies of xtgem.

 Graham A simple trick for if you wish to use a particular image as the thumbnail for a post but you do not want that image to appear in the actual post put the image inside a
<span style="display:none">...</span>
the image will still be used as the thumbnail but it will not be visible in the post this is particularly handy for embedded video posts