The Nivo slider was supposed to be included in the home page only and hence only one set of images is possible across the site.
You may use revolution slider to create multiple sliders and use the same across various pages by pasting the shortcodes for the respective slider instance.
You can also try the image carousel. The code would be something like this –
[responsive_carousel class="gallery-carousel" navigation="true" pagination=false items=2 items_desktop=2 items_desktop_small=2 items_tablet=2]
[wrap class="zero-margin"]
[/wrap]
[wrap class="zero-margin"]
[/wrap]
[wrap class="zero-margin"]
[/wrap]
[/responsive_carousel]