Background:
Some months back I found and installed a very helpful browser tool that I believe was based on the Chrome tampermonkey extension. It modified the green project bar to look something like this:
Some sequence of events which I will not be able to describe, including some fumble fingering here and there, has resulted in something different:
Note the addition of the "AI2HELPER" button on the far right.
My first question is: How do I remove this button along with its functionality?
My second would be: How do I recover the preferred, previous functionaliy with the search bar and buttons next to "Blocks:?
I have searched but only find references to installing AI2HELPER, but nothing on removing it? Perhaps I should remove tampermonkey, but there may be other dependents which I do not wish to disturb 
Any and all comments and ideas are welcome!
Kind regards,
Randal
Do you want to remove AI2HELPER？or just restore the previous version?
For remove:
for restore previous version:
then choose the history to 0.6.2
Hi Kevinkun,
Thanks for the detailed illustrated post. I do believe this will answer my questions! However, I can't get it's full value to guide me to a solution without English graphics
-Randal
PS I now think hat what I must have done is upgrade to he latest version.
Sorry i don't have an English version image, but i think the icon can help you, it should be same in Chinese version and English version.
Sorry i don't have an English version image>
No problem, Kevinkun!
Actually, now that I understand what has happened - I have installed the updated version - and I have used it, I LIKE IT!! So I will be leaving things the way they are 
And I am very appreciative for your work in building this extension. Many/most of us are accustomed to coding using a source code text editor of some kind. Searching and finding (or using imbedded links) code is very important. The AI2HELPER does a great job!
Kind regards,
-Randal
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