Tiddlywiki customizations

[Java Developer]

Hi,

How to do Tiddlywiki customizations ? Any good reference to override or do custom changes as per the specification so that future upgrade will be automatically supported.

Below are the customization planning to do

1. Integrate javascript with the combox option and keyin the provided text box without disturbing the search functions.

Planning to add a combo box option near to the search box with option such as Plain Text and English to Tamil for now.....So when user chooses the english to tamil combo box option, Where when user types english..it's equivalent word is

done in tamil....

example, type ammaa in the below url - http://english-to-tamil.herokuapp.com/ and it will convert to tamil

It has done by simple javascript - opensource...which i want to integrate near to the search box with a combo option 

https://github.com/Prash88/English-to-tamil-converter/tree/master/scripts  

2. Need to high light the search content after search results are published. However context search plugin is not working. Even if it works, it is not working when we navigate through the pages...It just highlight..However on clicking the page, the text should be highlighted....Basically they need to pass a function when open a page and resolve this

3. Export to PDF and Word options

Thanks.