JazzKing
Older arranger keyboards usually had a dedicated multi-position switch for selecting the type of chord accompaniment you wanted - full finger, simple fingering, etc. Some even had a position for inversions based on the lowest note you played. This switch was often the same switch that turned the accompaniment on and off and some even combined that with the main power switch for the entire board. This is not necessary with the newer boards (E433 included), as they are "intelligent" enough to tell what type of chord fingering you want just from the keys you are playing, . . . BUT . . . in the case of the E433 ( and many others) the accompaniment MUST BE TURNED ON (ACMP ON/OFF button) as it is the accompaniment feature that provides the "intelligence" to make the chords. See the "Easy Chords" table at the bottom of Page 44 of the manual for proper fingerings. You only get four "Easy" chord types - majors, minors, sevenths, and minor sevenths, that's it !
Now, this may be a problem for you, as the accompaniment is only going to provide the voices associated with the selected rhythm style, and when accompaniment is ON, but the rhythm is STOPped, the accompaniment defaults to a steady strings/pad drone - not pleasing at all. In other words, the accompaniment has to be on and the rhythm has to be running to get any kind of useable accompaniment. If you were looking for traditional left hand piano style accompaniment from simple (easy) chord fingering while you played right hand piano style melody, then no - the E433 can not do that. The closest you could come is to select one of the simple piano style accompaniment rhythms in the style range of 174 to 186.
If you do find a rhythm style that fits what you are playing, but is a little bit "too busy", you can use the STYLES buttons to turn some of the rhythm parts off.
Best of luck !