Advertising spot management

I notice that in the AD (advertising) part of the topic there is space to place in the header, inside the text, etc. and some people (5 personalized). How can I add more custom ADs than I can?

I tried some plugins but I can only add them by the plugin management, if I am going to edit the page it does not work out, so it is not compatible with TagDiv.

Any way to add more custom ADs?