Currently the sway extension is not able to show the outline of a file (functions and definitions):
Also the extension is not capable of finding all references of a variable, for example by rightclicking with the cursor on a function in solidity you find the following option:
Hey, appreciate your reply, turns out its working for me too now, not sure what went wrong earlier.
Then I would like to change the request to support folding of the outline, e.g. so its easier to see all functions of an impl block at a glance. Here is an example of what it looks like for a rust file: