Nested ordered record in tinymce

I am attempting to alter the habits of tinymce concerning ordered record (utilizing the plugin advlist), really if i kind an ordered record i’ve bought this html :

<ol>
  <li>first merchandise</li>
  <li>second merchandise</li>
  <li>third merchandise</li>
</ol>

if after my “Title 1” i press two occasions enter my precise record is break up and so i’ve two differents lists, and that i dont need that …

i would like to have the ability to insert inside my authentic ordered record one other ordered record, like this :

<ol>
  <li>first merchandise</li>
  <li>second merchandise
    <ol>
      <li>second merchandise first subitem</li>
      <li>second merchandise second subitem</li>
      <li>second merchandise third subitem</li>
    </ol>
  </li> 
  <li>third merchandise</li>
</ol>

I discover this submit it isn’t what i need to do nevertheless it explains learn how to change keyboard habits, however i’m not capable of finding learn how to keep away from this auto shut ol tag …

I verify a whole lot of possibility in tinymce nevertheless it does not appears to be one thing i can do utilizing choices (end_container_on_empty_block, fix_list_elements and many others …)

learn how to keep away from auto shut ol tag when i do a line return ?