Modifications in tmux.conf.

.tmux.conf

@@ -1,3 +1,6 @@
+# Start a session if none exists
+new-session
+
 # remap prefix from 'C-b' to 'C-a'
 unbind C-b
 set-option -g prefix C-a
@@ -23,15 +26,14 @@ bind -n M-Down select-pane -D
 set -g base-index 1
 set -g pane-base-index 1
 
-# Enable mouse mode (tmux 2.1 and above)
-set -g mouse on
+# Enable mouse mode
+set-window-option -g mode-mouse on
 
 # don't rename windows automatically
 set-option -g allow-rename off
 
-# Plugins
-
-set -g @plugin 'tmux-plugins/tmux-prefix-highlight'
+# Set history to 30000 lines
+set -g history-limit 30000
 
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