Adding a value to multiply and add-nodes.

I keep finding myself wishing for a default value to the Add and Multiply nodes. In almost every shader I write, at one place or several I just want to add or multiply the result of the blending with a simple float.

Two ways I feel this could be done:, the first seems most simple, the second is more of a stretch - but useful if you want to see the values displayed at the bottom (when working wih vectors for instance)



Not super important, but would help making shader trees a bit cleaner.