I've built an app with TableMatrix - I'm not sure that this is going to be the best for you.

One thing to investigate is wordwrapping. My app just uses the default behavior where text just disappears off the screen if column width is too small. I seem to remember a post that mentioned some trouble getting word wrap to work - so I'd definitely investigate that issue with a little prototype first - make sure your major feature works before getting too far into this.

You should also be aware that the data storage is a bit strange. TableMatrix uses a hash with keys like: "0,3" or "45,14" to indicate row 0, col 3, etc. That means that inserting a row is a hassle. I didn't do any inserts, but I did do sorts. To sort, on some combination of columns, I wound up just copying to an AoA, sort and then copy back. As it turned out even with 80,000 hash keys, the performance of this was noticeable, but "ok". I don't know what to recommend, but I'd spend some more time looking for something that would allow easier insert operations.