diff --git a/GITADORA-Arena-Model.md b/GITADORA-Arena-Model.md
index a3147de..b848971 100644
--- a/GITADORA-Arena-Model.md
+++ b/GITADORA-Arena-Model.md
@@ -30,6 +30,8 @@ As of [#846](https://github.com/spice2x/spice2x.github.io/pull/846) you can set
 
 Your touch monitor must support 800x1280 in portrait (16:10 monitor, not 16:9!!!). You need to rotate the monitor before launching the game.
 
+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.
+
 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)