You create a slide by saving the current view in slide format. A slide created in model space shows only the current viewport. A slide created in paper space shows all visible viewports and their contents. Slides show only what was visible. They do not show objects on layers that were turned off or frozen or objects in viewports that were turned off.
You cannot edit a slide. You must change the original drawing and remake the slide. If you use a low-resolution graphics monitor when creating a slide file and later upgrade to a high-resolution monitor, you can still view the slide. AutoCAD LT adjusts the image accordingly; however, the slide does not take full advantage of the new monitor until you remake the slide file from the original drawing.