Attach my own autosuggest to open input box in xGrid

We have our own autosuggest method that we use on other text inputs throughout our site; it uses an older version of ( Is it possible to attach this to the open input box in the xGrid, and if so how do I find the open input?

Unfortunately you will have to create your own exCell type with needed behaviour.
A tutorial you can find here:

Also you may have a look at the native similar functionality: