This is an usability issue. I am using Surface pro 4 tablet, windows 10 x64, vscode 0.10.8.

As a source code reviewer, I'd like to go to the definition from a source code line, without the need of keyboard or tablet pen.

Normally, if you want to right click on "my Computer" or "Desktop" or anywhere, you can just put your finger on the tablet screen and hold there for 3 seconds, the context menu will pop up.
However, in vscode, I put my finger right in javascript source code viewlet and hold it for several seconds and nothing happens. As a result, if user want to navigate to definition, or 'Go to symbol', he/she needs to click the system menu on right-left side of vscode, or, use a keyboard, which both are annoying if you are using a tablet which usually no keyboard no pen support - you can only use a finger to touch.

Please see: https://github.com/TheLevenCreations/electron_typescript_template/blob/master/captured2.gif