Update Virtual-Terminals.md

Misc/Virtual-Terminals.md

@@ -35,6 +35,11 @@ tmux kill-server
 
 A useful feature is to create a split screen in tmux. so inside a tmux session switch to command mode (`CTRL+b`) and push `"` for horizontal split or `%` for vertical split. Moving between splits or here called panes can be done in multiple ways, but easily with `CTRL+b` and the arrow-keys ![arrowkeys](https://media-cdn.ubuntu-de.org/wiki/thumbnails/6/62/62ca4de87dac191968e0278e8a342da9ce26ad59i66x.png)
 
+enable mouse srolling and a longer history, write to `~/.tmux.conf`:
+```
+set-window-option -g mode-mouse on
+set -g history-limit 30000
+```
 
 
 ### Sharing a tmux session with other users?