Select “Templates” from the left side menu in the Catalog Bar CMS

Click on “Mobile Catalog” menu and click on “Slider” field.

Now, the “Media Library” pops up as shown in the image below

Select multiple image files from the library and click on "Done" button.

When the image file is uploaded, click on "Save" button.

Now, you can see images sliding one after another in your mobile catalog. The image below represents two different screenshots of sliding images in one catalog page.