https://ckeditor.com/cke4/addon/autocomplete
This plugin provides contextual completion feature for custom text matches based on user input. Every time the user types a pre-configured matching character, such as "@" or "#", they get information about available autocomplete options. It includes the following features:
- Customization of the text matching function.
- Asynchronous data feed.
- Templating system for both the dropdown options and accepted output.
- Throttling to reduce text check frequency.
This feature is a base for implementing specialized autocomplete features, such as mentions, emoji or custom implementations.




Recent comments
There is a Drupal 7 contrib module that "lets the administrator see all administration pages in her preferred language" and which could be ported to Backdrop: https://www.drupal.org/project/...
Allow admin to select admin language seperate from front end language (multilingual)
@stpaultim – You're right: my approach affects also the main menu. I guess, because menus are also considered as user interface (not as content). @findlabnet – If I didn't miss anything,...
Allow admin to select admin language seperate from front end language (multilingual)
Go to the account edit of the desired user. On the horizontal tab below "Region and Language," select "English" or another language. WFM.
Allow admin to select admin language seperate from front end language (multilingual)