Easy Classes

Multiple teachers or rooms :
Only the last one of the selected will appear.
Multiple days :
Only the last day will appear.
Multiple hours :
Only the highest hour will be used.
For e.g. you checked 8:00 and 12:00 as a beginning hour > 12:00 will be used, not 8:00

Teachers or rooms :
Create a teacher/room category which title contains the multiple teachers (e.g. "Mrs. Peacock & M. Plum") or rooms (e.g. "The Ballroom & The Conservatory").
Days :
Create a different class for each day, you only have to copy/paste the title and the content (if not blank) check some boxes, the right day and here you go.
Hours :
Same problem as day, create a new class, copy/paste everything, check some boxes, choose the right hours, and here you go.

I DON'T LIKE HOW IT LOOKS, CAN I CUSTOMIZE THE APPEARANCE ?
The plugin implements a presentation of posts "classes" and "teachers" using the content and a table containing all the infos.
The classes and teachers pages will display depending fully on your theme, as there's no style implemented, just the structure.

About the schedule, its structure is a table with divs or tables inside, and it can totally be customized with css.
You need to know CSS of course, and how to modify it in Wordpress. Look into "themes" to learn more about it.

I don't recommand modifying the style directly in the schedule.css file of the plugin, so don't do that unless you're very familiar with CSS.
Here are the classes used by the plugin if you want to overwrite them :

CSS : SCHEDULE

.easy-class-schedule

The schedule container (round corners and grey border)

.easy-class-schedule table

The schedule itself

.easy-class-schedule td, th

Schedule headers and lines
Default border color is silver

.easy-class-schedule td

By default lines are 90px of height

.easy-class-schedule th

Just a little make-up for the headers to stand-out a bit

th.time

Hours headers

.classblock

Containers of classes (one class by classblock)

.double

A table created when two classes share an hour in the schedule
Each of the two classes is in one td

CSS : CLASSES AND TEACHERS

There's absolutely no css coming with the plugin for those.
The content is simply wrapped in a table, with tr and td.

Classes are implemented for customization though :

Classes :
.eac-class

Teachers :
.eac-teacher
WHY CAN'T I CONFIGURE THE SCHEDULE, CLASSES OR TEACHER STRUCTURE ? I'D LOVE TO ADD/REMOVE X THERE
Tell me that in your review, and I will consider updating the plugin ! :-)