Ctrl + Click Go To Definition
Note: This extension is only supported up to Visual Studio 2017 Version 15.6. For versions 15.7 and above, the feature has been implemented in the product for all languages that the extension supported. We highly recommend that you update and use the in-product functionality.
This feature enables clickable hyperlinks to symbols in source code in your code by holding down the Ctrl key when hovering with the mouse.
Ctrl + Click on any symbol to invoke Peek Definition on it.
This is the default behavior but if you want Ctrl + Click to Go To Definition, you can get that behavior by unchecking this option in Tools > Options > Productivity Power Tools > Other Extensions > Ctrl Click shows definitions in Peek.