diff --git a/spice2x-features.md b/spice2x-features.md
index 541c35d..15bdb55 100644
--- a/spice2x-features.md
+++ b/spice2x-features.md
@@ -2,7 +2,8 @@ This page documents various features of spice2x, including new functionality add
 
 # General tips - PLEASE READ FIRST
 
-If you hover over the (?) icon in SpiceCfg - such as the ones on the left side of each menu item - a tooltip will show up and gives you a detailed explanation.
+* If you hover over the (?) icon in SpiceCfg - such as the ones on the left side of each menu item - a tooltip will show up and gives you a detailed explanation.
+* ctrl + click various input widgets (like sliders) and you'll be able to enter values using your keyboard.
 
 # Input tabs (Buttons, Analogs)
 
@@ -243,6 +244,12 @@ Spice API is also available over the serial port (`-apiserial` and `-apiserialba
 
 # Misc. information
 
+## Disabling I/O hooks
+* If you specify the DLL via -exec option, I/O and game specific hooks are disabled.
+    * e.g., `spice64.exe -exec bm2dx.dll`
+    * If you still need to enable things selectively, you can specify `-io` or the game force enable hook (e.g., `-iidx`).
+    * There are also other options such as `-devicehookdisable` which may be needed.
+
 ## Bonus features for games
 
 * These games that are not normally touch games can be played with a touch screen: DANCERUSH, Jubeat.