Is it possible to resize Data Viewer Grid boxes?

I am making a social media app and wanted to create two types of posts. One type would be the normal size box in the data viewer grid. The other type would be bigger and take up the space of 4 grid boxes. Is it possible to resize the boxes of the grid in a data viewer grid, for different content?

Also, as a side note, is it possible to create a posting system like this using the data viewer grid? Or is there an alternative method?

Of course, you could build a forum using the DVL. You would need to create custom layouts using either STP or the layouts component.