The node bins contain all nodes required for building a process tree. The nodes are divided into the following three groups, classified by tabs:

(a) I/O bin (b) Tools bin (c) User/Project bin
Use the scroll bar under the applicable bin to scroll through all available nodes. You can also frame and highlight all the nodes starting with the same letter by pressing the key corresponding to this first letter on your keyboard while the cursor is sitting over a node bin. For example: pressing "K" while hovering the cursor above the All Nodes bin automatically highlights all of the Keyer nodes.