As a long term Opera user, since version 6 or 7, I have always appreciated the level to which we can customise Opera. Things like being able to change the default search engine, search engine shortcuts, removal of search engines that we have no wish to use, and even make sure additional flags are passed when we need them, like "-ai" in Google to remove the AI summary at the top.
However, on my Linux install, I can't seem to create a Google search shortcut for "g" that will search the ".co.uk" site, nor change the existing one to do so. Having looked, it seems my older systems have also had their changes to these removed.
Now, I understand that you are clearly sponsored to provide these, but they are hogging a number of key single letter shortcuts. I suggest one of the following:
let us change the shortcut for a search engine so we can create a custom one using the shortcut
let us disable a search engine so we can create a custom one using the shortcut
provide us with the ability to edit the entire search engine, either with overriding settings, or with drop down fields for "site of choice" and a inject for the query
