The signal area shows the state of the simulator as a table. Each row of this table corresponds to one subnode or one signal, and the different columns show different attributes of the signals. When the simulator starts, the signal area shows the subnodes and signals of the top-level node, corresponding to the block instances and connections of the top-level schematic. You can double-click the name of a subnode to enter this node, so that the simulator view shows the subnodes and signals of that node instead. Hence, the signal area works quite similar to the Windows File Explorer, where you double-click a folder to view the contents of it. Therefore, subnodes are symbolized by a folder icon in the signal area.
To optimize the view, you can show or hide individual columns by right-clicking the header row and checking or unchecking the name of the column in the context menu that appears.
The columns of the signal area are: