how to bind scroll wheel to change weapons

You don't need to be in a game to enable fast switch, but it may help for testing purposes.

It will appear as a smaller window inside Counter-Strike. If you didn't open the console in the previous section, press ~ to open it now. Open the console if it isn't already open.The console will appear whenever the game is started. Click 'Set Launch Options' in the 'General' tab.Right-click on the game in your Steam library and select 'Properties.'.You may need to force the console on the game's shortcut if you can't get it to appear: Force the console if you can't get it to work.If you can't get the console to open and you use a French layout for your keyboard, you'll need to change layouts when playing. This has been known to cause problems on keyboards using a French layout.You don't need to be in a game for it to appear. You can also check 'Fast weapon switch' in this screen to enable it without having to use console commands. CS: Source - Open the Options menu and select 'Advanced.' Check the 'Enable developer console (~)' box.CS: GO - Open the Options menu and select 'Game Settings.' Set 'Enable Developer Console' to 'Yes.' Note: Fast Switch is enabled by default for CS: GO and cannot be disabled.This console allows you to enter commands that change the game, including the fast switch command.

How to bind scroll wheel to change weapons