Preview the Publication
Is there any preview option in publication before print & export in the different formats (See the below image)?
It is good to preview before the export instead of each and every time ran the Pyramid, select the Output format, export, and check so on.
There is no Preview option, but as the authoring experience is wysiwyg, it shouldn't really be necessary. If you need to test the slicers, running it interactively with one slicer value selected will generate small output for checking things like flow grids and page repeaters.
Hope that helps.