If you are using a computer such as a Tablet PC that is set up to enter data with a pen device, you can work with the Groove Chat tool in Ink mode. You can also use your mouse to write and draw in Ink mode in the Chat tool. The menu and toolbar options for formatting text in a chat change when you switch to Ink mode. When you have switched to Ink mode, Groove provides the following formatting options; choose the option you need to draw, erase, or modify the style of ink you are using:
Ink. Lets you draw with the pen or the mouse in the chat text box.
Erase. Removes a drawn object (or part of a drawn object) by dragging.
Zap. Erases an entire drawn object at once by dragging.
Lasso. Selects an object you’ve drawn ...