sorry, dont saw the other questions.
The instructor grid will show always the most recent entries, like all other WordPress database requests. I think with a plugin you can sort the entries, please take a look at this post, normally it works with all post types:
The team post type is included in all our themes, it is an independent post type for team members. Instructor post type is included in the plugin we used for the timetable function.
The allslider is a slider and it’s working only if there are more than one slides in the slider.