a custom-post-types multichoice would be better

This plugin is excellent, looks good on site and works smoothly. However I have to give it 3 stars because it only allows to show ONE post-type and not multiple ones (just like every other Isotope plugins that are supposed to use custom-post-types as source). In other words, you cannot build an Isotope filtering all custom-post-types. Plus, just like any other Isotope plugins, it doesn’t pull the first image of the post but the featured image.
I hope you will improve it.