Decorate cell without affecting data

I’m trying to integrate collaboration in DHX Spreadsheet. I can listen to afterSelectionSet event and send selected cell to another client. But how would I decorate a certain cell without affecting data change. I have tried to use setStyle, but first of all, it unnecessarily triggers afterSelectionSet again for the other client and also changes data which is unnecessary. Any suggestion?

Hello Nikita.

Unfortunately the cell style state can be stored in data only.