I'm going to send this thread to the creators of Mycroft. Their CTO is a good friend of mine. He'll be excited to see something like this out in the wild.
Cool and big thanks to grue.
Too bad we can't do it with out using POST though.. then i think Chrome would work too.
I've made a bunch before and all i usually had to do was do a search then
copy out the URL then modify it slightly.
I have done HTML web design 10/15 years back so i looked at the search page source.
Yeah i have PHP experience too..
That showed me the form html
But that would not show me i think the full syntax for the "built" URL when clicking submit.
Which is why i had to ask..
If anyone can see another way to do it with out "POST" let me know

If you go and see the site it will let you edit the plugin.
Get the ID # from the BCT plugin page
Then enter edit a plugin by loading the number..then you can see how it was made.
There is like a wizard and testing feature for these things.
You can actually get the number for any of them and edit anyone you want.. it's all open source 100%