Add --custom to `output mode` command

This forces to set the mode as a custom mode.

1 files changed, 5 insertions, 1 deletions

diff --git a/sway/sway-output.5.scd b/sway/sway-output.5.scd
index da17e1c1..ae6ced24 100644
--- a/sway/sway-output.5.scd
+++ b/sway/sway-output.5.scd
@@ -24,12 +24,16 @@ must be separated by one space. For example:
 
 # COMMANDS
 
-*output* <name> mode|resolution|res <WIDTHxHEIGHT>[@<RATE>[Hz]]
+*output* <name> mode|resolution|res [--custom] <WIDTHxHEIGHT>[@<RATE>[Hz]]
         Configures the specified output to use the given mode. Modes are a
         combination of width and height (in pixels) and a refresh rate that your
         display can be configured to use. For a list of available modes for each
         output, use *swaymsg -t get_outputs*.
 
+        To set a custom mode not listed in the list of available modes, use
+        *--custom*. You should probably only use this if you know what you're
+        doing.
+
         Examples:
 
                 output HDMI-A-1 mode 1920x1080