Factorio Forums

When creating a blueprint, you can choose up to 4 icons (of which the game makes a passable attempt at guessing at), and there's a convenient display of all of the blueprint components.

To save some time, it should be possible to drag a component's icon into one of the one of the blueprint icons to quickly assign that icon without having to hunt for it through the giant "Select a signal" menu (which is incorrect text and I'll file a bug report on it...). Likewise, it should be possible to reorder the icons by dragging them to different slots (swapping with the icon in that slot.)

This is a tiny minor UX thing, but with the ongoing UX overhaul it seems like a good time to make these sorts of changes.

This seems like a pretty good idea. If we're lucky, it may already be part of the UI changes scheduled for 0.17

Very good idea. Clicking through icons in blueprints has cost me way too much time, especially if you keep making small changes to your build and then blueprinting it again and again.
There should also be an option to keep the name and icons of a blueprint and redraw the blueprint. But that's another problem.