[Plugin : WordPress Thumbnail Slider] Visible Images Limit?

Hello Dear,
I am just a new on wordpress and using it from a month
Now i am using free version of WordPress Thumbnail Slider from past a week…
But it support only 5 visible images at the slider.
I have my gaming blog and i want or i need to show atleast 6-7 or 8 images at the time in the slider.
So please can you tell me how to do that?
Want to show more than 5-6 images to slider.
Thank You. 🙂
Have a nice day.