You can change the number of images in almost any Posterino document. The initial number of images right after creating a new document from a template is just a handy start configuration.
There are several ways to change the number of images:
Change the number of images by using Drag & Drop:
You can of course apply the operations above to a set of images.
Change the number of images using the Inspector:
Locate the properties panel of the current layout method. E.g. thepanel:
Change the, and to change the overall number of images:
You can lock on dimension or the other. For example, lock theto a value of 4. Now you can still add images via Drag & Drop but only new rows are added if needed.