TableModel in MPS

I need a table and I used therefore the TableModel from jetbrains.mps.lang.editor.table.runtime. I use my own implementation therfore but I'm just curious because I found also another interface with an abstract implementation available, TableModel_optimized. I'm not quite sure how to use it, in the editor I just have table and hierarchycal table available where at table I have to return TableModel.

So do I have to implement this myself, so that it shows in the editor and returns a TableModel_optimized? Do I benefit anyhow from the TableModel_optimized (just curious because optimized :))
I figured it all out now, the SampleHeatingController in samples was very helpful to get the things done I wanted. I updated my initial post where only one question remains.

Looks like TableModel_optimized is an obsolete (unused class) and should be removed. I've created request for it:

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