There are two possibilities to define the region of your desktop that is going to be captured for TCP streaming:
Enter the region’s starting horizontal pixel [X] and the vertical pixel [Y] as well as the regions width [W] and height [H] into the text fields and press [Apply].
Or click [Pick Region]. The desktop will be overlaid with a transparent white mask and you may span the desired desktop region with the mouse.
To capture a desktop region that is not on the primary monitor, enter the region’s starting pixel and its size as described in option 1. This can’t be done by picking a region with the mouse.
The example shows a typical use. By picking a smaller region, you will stream the graph only without the surrounding columns and rows within the table.