DEFINITION: The ability to select more than one node and have them appear in the right hand inspector.
WHAT TO DO WITH MULTIPLE NODES:
1. You can do group actions such as delete all, disable all, assign "supply" to seelcted.
2. You can create a set of nodes you wish to use as the base number when using "Solve for Next X..."
METHODS:
Manual--just left click on each node you wish to add to the selection list
Auto Select--use the auto selection feature:
1. Open the magic sextant
2. Hover your mouse over the "Auto select nodes.." option
3. Then grab a category that fits your needs