[Fireball]

Ok, does the mod support IAS/TAS switch?

Yes it does. To do this you need to install this mod AND the Hotkeys mod located here:

viewtopic.php?t=4981

There are several options you can set with the Hotkeys mod, one of which is adding TAS readouts to the speedbar. By default the Hotkeys mod does NOTHING. You'll need to add a '[Mods]' section to the conf.ini file in your game folder, then you set each option by adding lines to the [Mods] section. (SAVE A COPY OF YOUR CONF.INI BEFORE YOU MAKE ANY CHANGES) Here's a sample you can copy/paste and modify as necessary.

[Mods]
SpeedbarTAS=1

With this option set, when you cycle through your speedbar you will have three additional settings: kmh TAS, knots TAS, and mph TAS.

Take a look at the README file in the original post for more details and other options available in the Hotkeys mod.

Let me know if you have any more questions.