I cannot edit this lesson

I cannot edit the lesson I created.
Will you please let me edit the following lesson? I have some things to edit.

For example,

  1. The first line “à - accompagner”, I’d like to delete it.
  2. I’d like to edit it as follows because “une lettre à écrire” is a set phrase.
    une lettre
    à écrire
    –>> une lettre à écrire

That lessons has been converted to 5.0 format and can no longer be edited in LingQ 4.0. Once we release version 5.0, you will be able to edit it again. We are gradually moving all lessons to 5.0.
Or, if you have access to LingQ Beta, you can edit it there.

I really appreciate your support.
For my personal learning reason, I created a new course to move a shared content that cannot be deleted. In this course explanation, I explained the reason why I created.