Saving profile files in a pre-defined location by default instead of asking about it every time.

Thing worth considering.

In some cases, managing all of the config files can be annoying.
In the case of selecting an option `Save` (not `Save As`), there should be a prompt only asking about the config name.
Having all of the configs in an expected place could make managing them easier (it would nicely work together with having multiple controllers using the same profile).

We could also populate list of available profiles with some of the profiles from this common directory.