You can change the constant value for an input port by double-clicking the port, then entering the new value into the input editor that pops up. (Or you can open the input editor by hovering the cursor over the port and pressing ↵.) When the input editor is open, press ↵ to accept the new value or ⎋ to cancel.
Input editors take on various forms depending on the data type of the specific input being edited — they may present as a text field, a menu, or a widget (such as color picker wheel), for example.
Some ports take lists as input. These ports have special attached “drawers” containing 0 or more input ports whose values will make up the contents of the list. Drawers contain two input ports by default, but may be resized to include more or fewer ports by dragging the “drag handle.”
You can change how a trigger port should behave when it’s firing events faster than downstream nodes can process them. Do this by right-clicking on the port, selecting
from its context menu, and selecting either or .