Hi, thanks but that was not the answer. Here i have another link:
It discribes the options and files to expand the functions by compose an email.
The file to set this functions is modules/Emails/include/ComposeView/EmailsComposeView.js
I will edit an emailtemplate with all functions. I didn’t found a solution to implement all these functions.
There is no file to set menubar=true or insert new plugins.