You create your ad on the Ad Edit screen, seen below:
All selected stock will show on the left under the Stock List tab. Any matched containers or lists will also show under their tabs.
The icons in the footer menu are as with the Stock List Footer Menu, with one extra, the green star allows you to toggle between displaying all stock or just selected.
Above the Ad is the Ad Edit Header Menu
To place properties on the page, first select a template to use from the drop down and then click the relevant stock on the left and drag it to the required position.