Hi guys,
added option to specify the number of images to the past you want to go. Make sure that if you are updating this block, you also delete the cache folder so that your settings is applied. The images are in 15 minute intervals, do not use anything above 200, I would recommend using max of about 50, remember that the more you choose the longer time span the radar will cover, however the loading time is also going to increase.
Enjoy