Add copy selection field, mention that persistent editor does not work in latest version

Using-Anki-for-Learning-Stenography.md

@@ -153,7 +153,7 @@ extensions that add features to anki. To install them, go to Tools -> Add-ons
     of new cards a day) that won't overwhelm you. (You can see how long you take
     per card that day in the Stats window or below the list of decks, and use this
     to see how many repetitions you want)
-- [Persistent Editor](https://ankiweb.net/shared/info/1686259334)
+- [Persistent Editor](https://ankiweb.net/shared/info/1686259334) (doesn't work with latest Anki version)
   - Keeps the editing window open while reviewing (but hides the current card
     until you've answered it). Useful if you are using a pre-made deck and
     prefer different briefs to the ones that are there.
@@ -162,6 +162,8 @@ extensions that add features to anki. To install them, go to Tools -> Add-ons
     alternative strokes, or other formatting
 - [AwesomeTTS](https://ankiweb.net/shared/info/1436550454)
   - Gives you access to a range of TTS voices and human recorded voices (Forvo).
+- [Copy selection field](https://github.com/antistic/anki-copy-selection-field)
+  - Lets you copy several selected entries in the Anki browse window, for example to copy into a practice tool like Steno Jig or Typey Type.
     
 
 ## Useful Plover Extensions