diff --git a/GITADORA-Arena-Model.md b/GITADORA-Arena-Model.md
index d63b4dc..ae08b1e 100644
--- a/GITADORA-Arena-Model.md
+++ b/GITADORA-Arena-Model.md
@@ -32,6 +32,9 @@ Your touch monitor must support 800x1280 in portrait (16:10 monitor, not 16:9!!!
 
 New in [PR 899](https://github.com/spice2x/spice2x.github.io/pull/899): `-gdsublandscape` and/or `-forceressub` option can be used to launch in custom resolution for the subscreen, including landscape.
 
+New in [PR 900](https://github.com/spice2x/spice2x.github.io/pull/900): `-gdasublayout` can be used to display the subscreen on a touch monitor in landscape orientation. It can also display the left / right monitors (live2d animations) on the sub monitor. It can also be combined with `-forceressub`.
+
+
 Once in the game, go into test menu and perform touch calibration to fix your touches not lining up.
 
 #### Option C) fullscreen with 4 monitors (AC configuration)