What I ideally want to do is to put in a macro/placeholder within multiple pages which will automatically be replaced with a static piece of text which be updated.
For instance, I would like to be able to change in one location the version of a current project or release and for it to display on all the pages I have put the placeholder, this way I only have to update 1 location instead of hunting down every page which references that release.
Depending on how often the data is going to change and who should do it, I tend to use:
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