Trigger stylegenerator of grid in ui.access

Hello all,

I have a case where I want to allow one Session/User to mark data in a grid for others as “do not touch - I am already working on this”. As the data is loaded from database via backend provider and the query is pretty slow it is not possible to query the data again (grid.getDataProvider.reloadAll()). So I thought to put the lines to mark in a static list and mark the rows via stylegenerator. But now I would need a way to trigger the StyleGenerator again in an asynchronus way (ui.access()). markAsDirty() is unfortunately not the solution.

Do you have any idea how to solve it? Or a better approach?