Sometimes there are lots of definitions at various nesting levels of a method, and it takes a few seconds to find a declaration. IDEA's current best solution to this problem is to ctrl+click a reference and move the cursor and scroll up or down. I think it would be helpful when browsing complicated code, for IDEA to draw an arrow while the user Ctrl+hovers over a reference, to the declaration of the referenced element. The Scheme IDE DrScheme does this in a slightly different way and it was helpful there when I used Scheme. I have wanted this feature a few times when editing code and I think it would generally make it easier to navigate code. If the declaration is offscreen, the arrow could just point to the bottom of the screen with some faded or dashed arrowhead. If the declaration is in another file, it might be useful for the arrow to point over to the class in the project / packages tree, if it's visible, and the tab bar, if the file is present and visible.