Exposing parameters for reusability

- [Narrator] Exposing a parameter … or number of parameters in Unreal … is a fairly simple process, … although we can run ourselves into a bit of a mess … if we end up just creating a long list of parameters … that make it hard for the end user to decipher … what it is that they need to do in order to use them. … As we take a look in this exercise at exposing parameters … so that they are editable, then we will also … want to keep an eye on how it is … that we can also organize them, … starting with the metallic value. … To make a start, then, all we need to do … is right click on the node that we want to expose, … and then choose the Convert to Parameter option. … This will, as we have already seen, … give us a couple of options that can help organize … our exposed parameters. … So, we can name the option Metallic Value, … and then type the word 'metallic' … into the group naming field. … If we wanted to add other controls to the rollout, … then we could use the dropdown … and select Metallic from the list. …