Difference between replace() and replaceAll()

I am using CKediotr 4.
I have used replace() and got it to work with configuration options .  In replace() I used the textarea "id",

Now I want to use replaceAll().  In replaceAll() I used the "class" name (per the documentation).  ReplaceAll() works for each textarea with the [class="textEditor"], except all included configuration options ("urColor" in this case) are ignored.  (I just used "urColor" in this code sample to keep it short.  I have other configuration options I want to include.)

How can I include configuration options with the replaceAll()?  What am I doing wrong?

<textarea id="SECTION_1" class="textEditor" >...some data1...</textarea>
<textarea id="SECTION_2" class="textEditor" >...some data2...</textarea>
<textarea id="SECTION_3" class="textEditor" >...some data3...</textarea>
   
<script type="text/javascript">
   CKEDITOR.replaceAll('textEditor', {
     uiColor: '#a08eaa'
   });
</script>